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Best telescope for astrophotography under $500


The Best Telescopes Under $500 In 2022 - Reviews

Looking for the best telescopes without breaking the bank? This article has got you covered. In this article, we will share our top picks for the best telescopes under $500. Contrary to what some may believe, it does not take an expensive telescope to be able to see the moon, stars, and planets with great clarity and detail.

Best Overall

Sky-Watcher Classic 150P

9

FEATURES: 2” Rack-And Pinion Focuser, 150mm (6”) of aperture, Tension adjustment, and Ergonomic height for comfortable viewing 

BENEFITS

  • 2” Rack-And Pinion Focuser supports larger eyepieces with smooth handling
  • 150mm (6”) of aperture allows for quality views of deep sky objects
  • Tension adjustment lets you lock the telescope in place in situations where there may not be proper balance
  • Stands at a comfortable viewing height without the need for a tripod or table

We found the Sky-Watcher Classic 150P to be the best equilibrium between aperture, price, and quality.

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Orion Starblast 4.5 Astro Reflector Telescope (Tabletop)

7.5

FEATURES: Three-slot eyepiece tray, 450mm of focal length, Orion EZ Finder II red-dot sight, and portable

BENEFITS

  • Extremely portable and easy to carry around, can be set up on top of most surfaces
  • Three-slot eyepiece tray allows for easy storage of eyepieces while in use
  • Included Orion EZ Finder II red-dot sight makes aiming the telescope simple and hassle-free
  • 450mm of focal length makes it very well suited for large nebulae, galaxies, and star clusters

The Orion Starblast 4.5 Astro Reflector Telescope packs a punch while still remaining one of the most inexpensive and portable options on the market.

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Sky-Watcher Heritage 150P Tabletop Dobsonian

8

FEATURES: Tabletop-style dobsonian mount, 25mm and 10mm eyepieces, 6” (150mm) f/5 optics, and 

BENEFITS

  • Tabletop-style dobsonian mount, low weight, and collapsible design makes this telescope very portable and manageable
  • Included 25mm and 10mm eyepieces allow for a range of magnifications right out of the box
  • Impressive 6” (150mm) f/5 optics pack the light-gathering capability of a larger dobsonian into a small footprint
  • Red dot finder allows for easy pointing and locating of objects in the sky

The Sky-Watcher Heritage 150P is one of the largest-aperture tabletop dobsonians on the market, striking a solid balance between light-gathering capability and overall compactness.

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Celestron Starsense Explorer DX 130AZ

7

FEATURES: Smartphone compatibility, Slow motion controls, Full-height tripod, and 650mm focal length 

BENEFITS

  • Smartphone compatibility seamlessly assists beginners at pointing and learning the night sky
  • Slow motion controls for making fine adjustments when pointing the telescope or tracking objects
  • Full-height tripod included for comfortable viewing through the eyepiece
  • Mid-range 650mm focal length makes this telescope capable of seeing both large deep sky objects and solar system objects in full

The Celestron Starsense Explorer DX 130AZ is the most beginner-friendly telescope on this list and is smartphone-capable, which allows for easy pointing of the telescope and learning the night sky.

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Orion StarMax 90mm

7. 5

FEATURES: Compact and lightweight design, Maksutov-Cassegrain focal length, 90-degree diagonal mirror, and Quick-release dovetail saddle
 
BENEFITS

  • Compact design and mere 6.5lbs assembled weight allows this to be an ultra-portable telescope
  • The long focal length Maksutov-Cassegrain design makes this telescope a splendid instrument for planetary and solar system observation
  • 90-degree mirror diagonal included for comfortable viewing
  • Quick-release dovetail saddle allows the telescope to be easily hot swapped onto another mount

The Orion StarMax 90mm’s long focal length in a small package makes it a great grab-and-go telescope for observing small objects like planets, globular clusters, and planetary nebulae.

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Even though most telescopes at this price point are aimed at beginners, it does not mean that the optics or build is of poor quality, but rather, it means that they are typically portable and with a straightforward setup & breakdown process.  In this article, we factor in cost, optical quality, build quality, convenience features, and overall ease of use. Through our research, we’ve condensed all of our top picks into five telescopes. We have determined that the best telescope under $500 is the Sky-Watcher Classic 150P.

Contents

    • Sky-Watcher Classic 150P
    • Orion Starblast 4.5 Astro Reflector Telescope (Tabletop)
    • Sky-Watcher Heritage 150P Tabletop Dobsonian
    • Celestron Starsense Explorer DX 130AZ
    • Orion StarMax 90mm
  • Comparison Table
  • Not Sure Which Scope is Right for You?
  • Types of Telescope 
      • Reflector 
      • Refractor 
      • Compound 
    • Features 
    • Aperture
    • Focal Length
    • Finder
    • Mount
      • Alt-Azimuth Mounts 
      • Equatorial Mounts 
      • Computerized Mounts
      • Dobsonian Telescopes 
    • Eyepieces
    • Tripod 
  • Frequently Asked Questions
    • Which Is Better: A Refractor Or A Reflector Telescope? 
    • Can I See Pluto With A Telescope? 
    • What Size Telescope Do I Need To See The Rings Of Saturn? 
    • Can I See Galaxies With A Telescope? 
    • Is Hubble A Reflecting Telescope? 
    • Why Are Large Telescopes So Expensive? 
    • Are Expensive Telescopes Worth It? 
    • Is Astronomy A Hard Subject To Study? 

Sky-Watcher Classic 150P

Best Overall

9/10Our Score

FEATURES: 2” Rack-And Pinion Focuser, 150mm (6”) of aperture, Tension adjustment, and Ergonomic height for comfortable viewing 

BENEFITS

  • 2” Rack-And Pinion Focuser supports larger eyepieces with smooth handling
  • 150mm (6”) of aperture allows for quality views of deep sky objects
  • Tension adjustment lets you lock the telescope in place in situations where there may not be proper balance
  • Stands at a comfortable viewing height without the need for a tripod or table

We found the Sky-Watcher Classic 150P to be the best equilibrium between aperture, price, and quality.

The Sky-Watcher Classic 150P is the largest aperture that you can get at this price point, allowing highly enjoyable, detailed views of planets, the moon, and brighter deep sky objects. Solar System features like the ice caps on Mars, Venus’s phases, and Jupiter’s cloud belts are just some examples of what can be seen with this instrument.

This one is the only full sized telescope in this article that does not require a table or tripod to elevate the eyepiece to a comfortable viewing height. Even being full sized, the Sky-Watcher Classic 150P is still highly portable and can easily be transported in small vehicles and carried with relative ease.

To use this telescope to its fullest potential, we recommend investing in a nicer set of eyepieces if possible. The included 25mm and 10mm plossl eyepieces are adequate, but withhold the clarity and field of view that the 150P is capable of (see our article on the best telescope eyepieces).

Additionally, it is recommended that the included 6×30 magnified finderscope either be used in parallel with or swapped for a zero-power finderscope like a Rigel Quikfinder or a Telrad. The “straight-through” design of the finderscope is unergonomic to look through and can be confusing to use for beginners or those who are not used to using magnified finders.

Orion Starblast 4.5 Astro Reflector Telescope (Tabletop)

7.5/10Our Score

FEATURES: Three-slot eyepiece tray, 450mm of focal length, Orion EZ Finder II red-dot sight, and portable

BENEFITS

  • Extremely portable and easy to carry around, can be set up on top of most surfaces
  • Three-slot eyepiece tray allows for easy storage of eyepieces while in use
  • Included Orion EZ Finder II red-dot sight makes aiming the telescope simple and hassle-free
  • 450mm of focal length makes it very well suited for large nebulae, galaxies, and star clusters

The Orion Starblast 4.5 Astro Reflector Telescope packs a punch while still remaining one of the most inexpensive and portable options on the market.

The Orion Starblast 4. 5 Astro Reflector is one of the most portable and budget-friendly options out there. Weighing in at only 13 pounds (5.9kg), this scope can easily be picked up and moved around, transported in any sized vehicle, and can even fit in a large backpack. All it requires is a table or other surface for the mount to rest on top of and it is ready to go.

Despite its small footprint, the Starblast still features a solid 4.5” of aperture, which is plenty enough to see larger planetary details and bright deep-sky objects. You can get the most out of this by purchasing a set of better eyepieces, since the included Kellner eyepieces are rather cheap quality and do not fully complement the capabilities of the scope (see our article on the best telescope eyepieces).

Overall, this telescope is wonderful for anyone who is just getting into astronomy or seeking a budget grab-and-go telescope. However, it is to be noted that this telescope, along with all of the other newtonian-style telescopes in this article, require collimation for the optics to perform properly, but this is an easy endeavor with a telescope of this size (see our collimation guide here).

Sky-Watcher Heritage 150P Tabletop Dobsonian

8/10Our Score

FEATURES: Tabletop-style dobsonian mount, 25mm and 10mm eyepieces, 6” (150mm) f/5 optics, and Red dot finder

BENEFITS

  • Tabletop-style dobsonian mount, low weight, and collapsible design makes this telescope very portable and manageable
  • Included 25mm and 10mm eyepieces allow for a range of magnifications right out of the box
  • Impressive 6” (150mm) f/5 optics pack the light-gathering capability of a larger dobsonian into a small footprint
  • Red dot finder allows for easy pointing and locating of objects in the sky

The Sky-Watcher Heritage 150P is one of the largest-aperture tabletop dobsonians on the market, striking a solid balance between light-gathering capability and overall compactness.

At 6 inches of aperture, the Sky-Watcher Heritage 150P is one of the largest tabletop telescopes that money can buy. At this size, most would begin to wonder if portability is an issue, but luckily the top of this telescope collapses down into a smaller size for easy storage and transportation. This, however, means that the telescope must be collimated more often than others on this list because of the truss-style design.

The included eyepieces with the package are rather mediocre in build quality but are better optically and more comfortable to look through than the other telescope packages featured in this article. The other included accessories are also great and do not need to be changed out, but we recommend that you make or buy a light shroud for the optical tube, since the partial open-truss design allows for unwanted stray light and glare to enter the telescope

With all of this being said, the Sky-Watcher Heritage 150P makes a great telescope for anyone on a budget who is looking for a quality instrument that is simple to set up and use for beginning the hobby, or for anyone who just wants a collapsible grab-and-go telescope with a respectable amount of aperture.

Celestron Starsense Explorer DX 130AZ

7/10Our Score

FEATURES: Smartphone compatibility, Slow motion controls, Full-height tripod, and 650mm focal length 

BENEFITS

  • Smartphone compatibility seamlessly assists beginners at pointing and learning the night sky
  • Slow motion controls for making fine adjustments when pointing the telescope or tracking objects
  • Full-height tripod included for comfortable viewing through the eyepiece
  • Mid-range 650mm focal length makes this telescope capable of seeing both large deep sky objects and solar system objects in full

The Celestron Starsense Explorer DX 130AZ is the most beginner-friendly telescope on this list and is smartphone-capable, which allows for easy pointing of the telescope and learning the night sky.

The Celestron Starsense Explorer DX 130AZ is one of Celestron’s newly designed telescopes marketed primarily towards beginners. Even though it is marketed as such, the optics and build quality is fairly decent as compared to other “beginner” telescopes like the Celestron Powerseeker or Celestron Astromaster.

While the mount and tripod is mostly made of cheap plastic, it is adequate for holding the lightweight optical tube on a windless night. Unfortunately, the mount is lightweight enough to where breezes or an unstable platform can easily introduce vibrations into the system. The included 25mm and 10mm eyepieces are also not the best quality, so we recommend replacing them with a nicer set of 1.25” eyepieces.

As one of the most expensive telescopes on this list, the main thing you will be paying for is the Starsense Explorer App and its capabilities. It provides you a semi-automated telescope experience, also known as a “push-to” system, where the app tells you where and how much to move the telescope rather than utilizing motors to do it for you. This allows for easy learning of the night sky without all of the frustration of star hopping.

While most may doubt the abilities of a smartphone app to assist in accurately locating objects, it is surprisingly precise and makes for an overall great user experience. If ease of use and beginner-friendly are the attributes you are looking for, then the Celestron Starsense Explorer DX 130AZ caters exactly to that.

Orion StarMax 90mm

7.5/10Our Score

FEATURES: Compact and lightweight design, Maksutov-Cassegrain focal length, 90-degree diagonal mirror, and Quick-release dovetail saddle
 
BENEFITS

  • Compact design and mere 6.5lbs assembled weight allows this to be an ultra-portable telescope
  • The long focal length Maksutov-Cassegrain design makes this telescope a splendid instrument for planetary and solar system observation
  • 90-degree mirror diagonal included for comfortable viewing
  • Quick-release dovetail saddle allows the telescope to be easily hot swapped onto another mount

The Orion StarMax 90mm’s long focal length in a small package makes it a great grab-and-go telescope for observing small objects like planets, globular clusters, and planetary nebulae.

The Orion StarMax 90mm may be the smallest and most compact telescope on this list, but its capabilities are well underestimated. Despite the small aperture, its 1250mm focal length makes it a prime telescope for observing planetary detail. Even with the included eyepieces (25mm and 10mm) they each yield 50x and 125x magnification respectively. This is plenty of power for seeing the cloud bands and great red spot on Jupiter, the Cassini division in the rings of Saturn, and even the polar ice caps on Mars at opposition.

The quality of the telescope and accessories are great, but out of the box it can be a bit frustrating to use. This is because the included dobsonian tabletop mount lacks fine adjustment knobs, and can therefore be a pain to aim and center objects at such a high focal length. Luckily, however, the telescope can easily be taken off the mount and put on a heavy duty photographic tripod or other telescope mount that accepts a vixen dovetail bar.

When properly mounted, this telescope can easily live up to its fullest potential as a quality planetary observation scope and doesn’t really need any upgrades. With that being said, if you are looking for a telescope with a lot of power under $500, then this should be one of your first selections.

Comparison Table

Product Title

Product Title

Sky-Watcher Classic 150P

Orion Starblast 4.5 Astro Reflector Telescope (Tabletop)

Sky-Watcher Heritage 150P Tabletop Dobsonian

Celestron Starsense Explorer DX 130AZ

Celestron 70mm Portable Refractor Telescope

Scope Design

Scope Design

Newtonian Reflector

Newtonian Reflector

Newtonian Reflector

Newtonian Reflector

Reflector

Focal Ratio

Focal Ratio

f/7.9

f/4.0

f/5

f/5

f/5.7

Focal Length

Focal Length

1200mm

450mm

750mm

650mm

400mm

Focuser

Focuser

2” Rack-and-pinion

1.25" Rack-and-pinion

1.25" Helical

2" Rack-and-pinion

2" Rack-and-pinion

Resolving Power (Rayleigh)

Resolving Power (Rayleigh)

0. 93

1.02

0.93

0.89

1.98

Length of Optical Tube

Length of Optical Tube

44.5 in

18 in

48 in

25 in

25 in

Weight Fully Assembled

Weight Fully Assembled

40 lbs

13 lbs

23.5 lbs

18 lbs

3.3 lbs

Limiting Stellar Magnitude

Limiting Stellar Magnitude

14.7

12.9

13.36

13.1

11.7

Mount Type

Mount Type

Dobsonian

Dobsonian

Dobsonian

Alt-Azimuth

Alt-Azimuth

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Buy on OrionBuy on OptCorp

Buy on High Point ScientificBuy on OptCorp

Buy on AmazonBuy on Highpoint Scientific

Buy on Highpoint ScientificBuy on Amazon

Not Sure Which Scope is Right for You?

Take our interactive quiz to find out the best scope based on your preferences!

Types of Telescope 

First, it is necessary to understand the different types of telescopes. Each variety comes with its own pros and cons. Below, we’ve listed each type of telescope with a brief description. Take a look!

Reflector 

Reflector telescopes use a mirror. This mirror is placed at the back of your telescope, and it reflects your images (hence the name). These tend to be less expensive than the other types of telescopes, however, they do require more maintenance. 

Refractor 

These telescopes work via a lens that is situated at the front of the telescope. Refractor telescopes are easier to maintain than reflector telescopes, however, the cost of the telescope can be quite pricey depending on the size of the lens.

The larger the lends, the better the quality, and thus, the pricier the telescope. 

Compound 

As you might have guessed, compound telescopes are essentially a hybrid of the two previous types.

They use mirrors and lenses to gather light. If you’re looking for a telescope that you can take on your travels with you, keep an eye out for a compound telescope, as this variety tends to be quite lightweight and small when compared to the others.

Features 

Now, it is necessary to understand the different features of a telescope. Understanding these terms will help you feel more confident in your purchase. 

Aperture

This is the diameter of the lens or mirror. If you’re looking for a telescope that will enable you to see objects that are particularly faint or far away, you’ll want to keep an eye out for those with a large aperture. 

Focal Length

This equates to the distance between the lens/mirror and the point where the object is brought into focus. Essentially, this length communicates how much magnifying power your telescope has. 

Finder

A finder is an object that attaches to the outside of your telescope. They help you pinpoint exactly what you’re looking for. More up-to-date models (such as some of those listed above) will have red-dot technology. This means that the telescope is able to project a red dot into the sky, so you can see where your telescope is pointed.  

Mount

The mount of your telescope is responsible for holding it in place whilst you try to focus. If you have a weak mount, this can make focusing on something really quite difficult.

As such, be sure to look at the customer reviews to ensure the mount is stable enough. There are different types of mounts that you can choose from. We’ve listed the most common below. 

Alt-Azimuth Mounts 

These mounts move along two axes with vertical and horizontal motions. This type of mount tends to be the easiest to use, and as such, is good for beginners. To use an Alt-Azimuth mount, simply point it to where you want to look and tighten it. 

Equatorial Mounts 

These are specifically designed for tracking astronomical objects as the earth rotates. Equatorial mounts are more difficult to use than the type above because it takes some time to learn how to properly align.  However, when these mounts are properly aligned, you are able to track objects using slow-motion control.  

Computerized Mounts

Both of the varieties of mounts above can be computerized. This essentially means that a computer system automatically controls the direction and tracking of the telescope. These mounts can automate the task of finding specific celestial objects. 

Dobsonian Telescopes 

The Dobsonian telescope design is widely recommended for mature astronomers. It balances affordability with easy-of-use and power. They do this by using a special type of the Alt-Azimuth mount and pairing it with a large Newtonian reflector telescope. 

Eyepieces

It is also worth mentioning eyepieces. An eyepiece is the part of the telescope that you look through. There are many different types and sizes of eyepieces.

If you’re just getting started, we recommend purchasing a telescope with a few different eyepiece possibilities. These, combined with a Barlow lens, will give you a good opportunity to be creative and explore all of your possibilities.  

Tripod 

Tripods for telescopes also need to be particularly sturdy. You will want to ensure that the tripod you opt for can be adjusted to suit your height. Also, if you plan on traveling with your telescope, you will need to ensure that the tripod can be folded down and comes with a case. 

Saying that, not all telescopes require a tripod. Some telescopes can be used on flat surfaces and tabletops, in addition to tripods. These are a great option for people who have a well-situated desk and don’t want the fuss of assembling a tricky tripod every time they want to explore the night sky. 

Frequently Asked Questions

Which Is Better: A Refractor Or A Reflector Telescope? 

This depends on what you require from a telescope. Refractor telescopes are beginner-friendly. They also produce right-side-up images, have low-image distortion, and don’t require collimation. However, high-quality refractor telescopes tend to be quite expensive, and they often have issues concerning color fringing.  

Can I See Pluto With A Telescope? 

Technically, yes! However, you will need a telescope with a large aperture! Pluto sits at the very edge of our solar system and doesn’t shine very brightly at all. In fact, Pluto looks like a faint star through a telescope. 

What Size Telescope Do I Need To See The Rings Of Saturn? 

You should be able to see the rings of Saturn in even the smallest telescopes (25x). If you purchase a good quality, 3-inch telescope with 50x, you should be able to see the rings of Saturn in good detail. 

Can I See Galaxies With A Telescope? 

Galaxies are some of the most distant celestial objects that we can observe. As such, it can be tricky to see galaxies from a telescope. However, with a 4-inch telescope, you might be able to see the core of a bright galaxy.

Is Hubble A Reflecting Telescope? 

The Hubble telescope is a Cassegrain reflector telescope. This means that the light produced by celestial objects travels down a tube, is collected by a curved mirror, and is then reflected toward a smaller, curved mirror. 

Why Are Large Telescopes So Expensive? 

Large telescopes require extremely precise measurements. For giant telescopes, a tiny defect could throw off the entire image. As such, the manufacturing process needs to have an intense level of precision to ensure that there is no room for error.

This costs a lot more. Shipping and installation are also incredibly expensive for such precious and large pieces of equipment.

Are Expensive Telescopes Worth It? 

If you’re a budding astronomer, you will really benefit from a telescope that is around $250 – $500. The telescopes that you find for around $150 or less tend to have quite a low optical quality and aren’t really worth it. 

If you are looking for a decent telescope to explore your interest further, we recommend opting for a telescope that is around the $300 mark. These tend to have decent enough optics and beginner-friendly features to help you develop your skills.

Is Astronomy A Hard Subject To Study? 

Yes. However, don’t let this put you off.  Astronomy is a branch of physics, which is one of the more challenging sciences. It includes a lot of mathematical skills and patience. However, we promise you, it is also an incredibly rewarding and fun field of study. 

Astronomy is the study of celestial objects, such as stars and galaxies. It tries to understand how they were formed, their structure, their composition, and their motion. Because of this, we believe that Astronomy is one of the most fascinating fields of study ever. 

Types of Telescope 

First, it is necessary to understand the different types of telescopes. Each variety comes with its own pros and cons. Below, we’ve listed each type of telescope with a brief description. Take a look!

Reflector 

Reflector telescopes use a mirror. This mirror is placed at the back of your telescope, and it reflects your images (hence the name). These tend to be less expensive than the other types of telescopes, however, they do require more maintenance. 

Refractor 

These telescopes work via a lens that is situated at the front of the telescope. Refractor telescopes are easier to maintain than reflector telescopes, however, the cost of the telescope can be quite pricey depending on the size of the lens.

The larger the lends, the better the quality, and thus, the pricier the telescope. 

Compound 

As you might have guessed, compound telescopes are essentially a hybrid of the two previous types.

They use mirrors and lenses to gather light. If you’re looking for a telescope that you can take on your travels with you, keep an eye out for a compound telescope, as this variety tends to be quite lightweight and small when compared to the others.

Features 

Now, it is necessary to understand the different features of a telescope. Understanding these terms will help you feel more confident in your purchase. 

Aperture

This is the diameter of the lens or mirror. If you’re looking for a telescope that will enable you to see objects that are particularly faint or far away, you’ll want to keep an eye out for those with a large aperture. 

Focal Length

This equates to the distance between the lens/mirror and the point where the object is brought into focus. Essentially, this length communicates how much magnifying power your telescope has. 

Finder

A finder is an object that attaches to the outside of your telescope. They help you pinpoint exactly what you’re looking for. More up-to-date models (such as some of those listed above) will have red-dot technology. This means that the telescope is able to project a red dot into the sky, so you can see where your telescope is pointed.  

Mount

The mount of your telescope is responsible for holding it in place whilst you try to focus. If you have a weak mount, this can make focusing on something really quite difficult.

As such, be sure to look at the customer reviews to ensure the mount is stable enough. There are different types of mounts that you can choose from. We’ve listed the most common below. 

Alt-Azimuth Mounts 

These mounts move along two axes with vertical and horizontal motions. This type of mount tends to be the easiest to use, and as such, is good for beginners. To use an Alt-Azimuth mount, simply point it to where you want to look and tighten it. 

Equatorial Mounts 

These are specifically designed for tracking astronomical objects as the earth rotates. Equatorial mounts are more difficult to use than the type above because it takes some time to learn how to properly align.  However, when these mounts are properly aligned, you are able to track objects using slow-motion control.  

Computerized Mounts

Both of the varieties of mounts above can be computerized. This essentially means that a computer system automatically controls the direction and tracking of the telescope. These mounts can automate the task of finding specific celestial objects. 

Dobsonian Telescopes 

The Dobsonian telescope design is widely recommended for mature astronomers. It balances affordability with easy-of-use and power. They do this by using a special type of the Alt-Azimuth mount and pairing it with a large Newtonian reflector telescope. 

Eyepieces

It is also worth mentioning eyepieces. An eyepiece is the part of the telescope that you look through. There are many different types and sizes of eyepieces.

If you’re just getting started, we recommend purchasing a telescope with a few different eyepiece possibilities. These, combined with a Barlow lens, will give you a good opportunity to be creative and explore all of your possibilities.  

Tripod 

Tripods for telescopes also need to be particularly sturdy. You will want to ensure that the tripod you opt for can be adjusted to suit your height. Also, if you plan on traveling with your telescope, you will need to ensure that the tripod can be folded down and comes with a case. 

Saying that, not all telescopes require a tripod. Some telescopes can be used on flat surfaces and tabletops, in addition to tripods. These are a great option for people who have a well-situated desk and don’t want the fuss of assembling a tricky tripod every time they want to explore the night sky. 

Frequently Asked Questions

Which Is Better: A Refractor Or A Reflector Telescope? 

This depends on what you require from a telescope. Refractor telescopes are beginner-friendly. They also produce right-side-up images, have low-image distortion, and don’t require collimation. However, high-quality refractor telescopes tend to be quite expensive, and they often have issues concerning color fringing.  

Can I See Pluto With A Telescope? 

Technically, yes! However, you will need a telescope with a large aperture! Pluto sits at the very edge of our solar system and doesn’t shine very brightly at all. In fact, Pluto looks like a faint star through a telescope. 

What Size Telescope Do I Need To See The Rings Of Saturn? 

You should be able to see the rings of Saturn in even the smallest telescopes (25x). If you purchase a good quality, 3-inch telescope with 50x, you should be able to see the rings of Saturn in good detail. 

Can I See Galaxies With A Telescope? 

Galaxies are some of the most distant celestial objects that we can observe. As such, it can be tricky to see galaxies from a telescope. However, with a 4-inch telescope, you might be able to see the core of a bright galaxy.

Is Hubble A Reflecting Telescope? 

The Hubble telescope is a Cassegrain reflector telescope. This means that the light produced by celestial objects travels down a tube, is collected by a curved mirror, and is then reflected toward a smaller, curved mirror. 

Why Are Large Telescopes So Expensive? 

Large telescopes require extremely precise measurements. For giant telescopes, a tiny defect could throw off the entire image. As such, the manufacturing process needs to have an intense level of precision to ensure that there is no room for error.

This costs a lot more. Shipping and installation are also incredibly expensive for such precious and large pieces of equipment.

Are Expensive Telescopes Worth It? 

If you’re a budding astronomer, you will really benefit from a telescope that is around $250 – $500. The telescopes that you find for around $150 or less tend to have quite a low optical quality and aren’t really worth it. 

If you are looking for a decent telescope to explore your interest further, we recommend opting for a telescope that is around the $300 mark. These tend to have decent enough optics and beginner-friendly features to help you develop your skills.

Is Astronomy A Hard Subject To Study? 

Yes. However, don’t let this put you off.  Astronomy is a branch of physics, which is one of the more challenging sciences. It includes a lot of mathematical skills and patience. However, we promise you, it is also an incredibly rewarding and fun field of study. 

Astronomy is the study of celestial objects, such as stars and galaxies. It tries to understand how they were formed, their structure, their composition, and their motion. Because of this, we believe that Astronomy is one of the most fascinating fields of study ever. 

Best telescopes under $500 of 2022

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Written By Jim Beaugez

Published Jun 27, 2022 9:00 AM

Telescopes, in their basic function, are our connection to the stars. For millennia, humankind has gazed skyward with wonder into the infinite reaches of outer space. And as humans are a curious bunch, our ancestors devised patterns in the movements of celestial bodies and gave them names and built stories around them. The ancient Egyptians, Babylonians, and Greeks indulged in star worship. But you don’t have to follow those lines to geek out over the vastness of the night sky. It’s just so cool. Fortunately, whatever your motivation for getting under the stars, there is an affordable option for you on our list of the best telescopes under $500.

  • Best overall: Celestron StarSense Explorer DX 130AZ
  • Best for viewing planets: Sky-Watcher Skymax 102mm Maksutov-Cassegrain Telescope
  • Best for astrophotography: William Optics Guide Star 61
  • Best for kids: Orion Observer II 60mm AZ Refractor Telescope Starter Kit
  • Best budget: Popular Science by Celestron Travel Scope 70 Portable Telescope

How we chose the best telescopes under $500

The under-$500 telescope market is crowded with worthy brands and models, so we looked at offerings in that price range from several well-known manufacturers in the space. After narrowing our focus based on personal experience, peer suggestions, critical reviews, and user impressions, we then considered aperture, focal length, magnification, build quality, and value to come up with these five models.

What to consider when buying the best telescopes under $500

To get the best views of the stars, planets, and other phenomena of outer space, not just any old telescope will get the job done. There are levels of quality and a wide range of price points and features to sort through before you can be sure you’re making the right purchase for what you want out of your telescope, whether it’s multi-thousands or one of the best telescopes under $500.

Optics

There are three types of optics available on consumer telescopes, and they will help you achieve three different goals. Refractor telescopes use a series of glass lenses to bring celestial bodies like the moon and near planets into focus easily. Reflector telescopes—also known as Newtonian scopes for their inventor, Sir Isaac Newton—swap lenses for mirrors and allow stargazers to see deeper into space. Versatile compound telescopes combine these two methods in a smaller, more portable form factor, with results that land right in the middle of the pack. 

Aperture

Photographers will recognize this one—like on a manual camera, the aperture controls the amount of light entering the telescope. Aperture is the diameter of the lens or the primary mirror, so a telescope with a large aperture draws more light than a small aperture, resulting in views into deeper space. F-ratio is the spec to watch here. Low f-ratios, such as f/4 or f/5, are usually best for wide-field observation and photography, while high f-ratios like f/15 can make deep-space nebulae and other bodies easier to see and capture. Midpoint f-ratios can get the job done for both.

Mounts

All the lens and mirror power in the world won’t mean much if you attach your telescope to a subpar mount. In general, the more lightweight and portable the tripod mount, the more movement you’ll likely get while gazing or photographing the stars. Investing in a stable mount will improve the viewing experience. The two common mount types are alt-az (altitude-azimuth) and equatorial. Altazimuth mounts operate in the same way as a camera tripod, allowing you to adjust both axes (left-right, up-down), while equatorial mounts also tilt to make it easier to follow celestial objects.

Best overall: Celestron StarSense Explorer DX 130AZ

Why it made the cut: Solid build and specs, paired with the remarkable StarSense Explorer app, make this telescope a perfect introduction to celestial observation.

Specs

  • Focal length: 650mm
  • Aperture: 130mm, f/5
  • Magnification: 65x, 26x

Pros

  • App aids in finding stars
  • Easy to operate
  • Steady altazimuth mount

Cons

  • Eyepieces are both low power

Newbies to astronomy today can have a decidedly different experience than beginners who started stargazing before smartphones were a thing. Instead of carting out maps of the night sky to find constellations, the StarSense Explorer series from Celestron, including the DX 130AZ refractor, makes ample use of your device to bring you closer to the stars. 

With your smartphone resting in the telescope’s built-in dock, the StarSense Explorer app will find your location using the device’s GPS and serve up a detailed list of celestial objects viewable in real-time. Looking for the Pleiades cluster? This app will tell you how far away it is from you and then lead you there with on-screen navigation. The app also includes descriptions of those objects and tips for observing them, as well as other useful info. 

The StarSense Explorer ships with an altazimuth mount equipped with slow-moving fine-tuning controls for both axes so you can find your target smoothly. And for those times you want to explore the night sky without tethering a smartphone, the scope’s red dot finder will help you zero in on your targets. The two eyepieces, measuring 25mm and 10mm, are powerful enough to snag stellar views of the planets, but not quite enough to see the details a high-powered eyepiece would deliver.

Best for viewing planets: Sky-Watcher Skymax 102mm Maksutov-Cassegrain Telescope

Sky-Watcher

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Why it made the cut: This telescope punches above its weight class in size and power, making it an ideal scope for viewing planets.

Specs

  • Focal length: 1300mm
  • Aperture: 102mm, f/12.7
  • Magnification: 130x, 52x

Pros

  • Great for viewing planets and galaxies
  • Sharp focus and contrast
  • Powerful

Cons

  • Not ideal for deep-space viewing

Let’s be real—most consumers in the market for a moderately priced telescope are in it to gain spectacular views of the planets and galaxies, but probably not much else. And it’s easy to see why. Nothing makes celestial bodies come alive like viewing them in real-time, in all their colorful glory.

If that sounds like you, then allow us to direct you to the Sky-Watcher Skymax 102, a refracting telescope specializing in crisp views of objects like planets and galaxies with ample contrast to make them pop against the dark night sky. The Skymax 102 is based on a Maksutov-Cassegrains design that uses both mirrors and lenses, resulting in a heavy-hitting scope in a very compact and portable unit. A generous 102mm aperture pulls in plenty of light to illuminate the details in objects, and the 1300mm focal length results in intense magnification.

Two included wide-angle eyepieces measuring 25mm and 10mm deliver 130x and 52x magnification, respectively. The package also includes a red-dot finder, V-rail for mounting, 1.25-inch diagonal viewing piece, and a case for transport and storage. If you’re looking for pure colors across a perfectly flat field in a take-anywhere form factor, look no further.

Best for astrophotography: William Optics GuideStar 61 

William Optics

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Why it made the cut: Top-notch specs and an enviable lens setup make this telescope ideal for astrophotography.

Specs

  • Focal length: 360mm
  • Aperture: f/5.9
  • Magnification: 7x (with 2-inch eyepiece)

Pros

  • Well-appointed specs
  • Sturdy, durable construction
  • Carrying case included

Cons

  • Flattener is an extra purchase

Sometimes you want to share more than descriptions of what you see in the night sky, and that’s where this guidescope comes in, helping you to focus in on the best full-frame image. You can go as deep into the details (not to mention debt) as your line of credit will allow in your quest to capture the most impressive images of space. Luckily, though, this is a worthy option at a reasonable price. 

The Williams Optics Guide Star 61 telescope is a refracting-type scope with a 360mm focal length, f/5.9 aperture and 61mm diameter well-suited to capturing sharp images of planets, moon, and bright deep-sky objects. The GS61 shares many specs with the now-discontinued Zenith Star 61, including focal length, aperture and diameter, as well as the FPL53 ED doublet lens for high-contrast images.

The scope’s optical tube is about 13 inches long and weighs just 3 lbs.—great for traveling with the included carrying case—with a draw-tube (push-pull) focuser for coarse focusing and a rotating lens assembly for fine focus. Attaching a DSLR camera to the Guide Star 61 is a fairly easy job, but note that the flattener for making that connection is a separate purchase.

Best for kids: Orion Observer II 60mm AZ Refractor Telescope Starter Kit

Why it made the cut: The entire package is designed to get kids exploring space right out of the box.

Specs

  • Focal length: 700mm
  • Aperture: 60mm, f/11.7
  • Magnification: 70x, 28x

Pros

  • Capable of detailed views of moon and planets
  • Lightweight construction
  • Lots of handy accessories

Cons

  • Not enough optical power to reach deep space

Parents have a limited window of time to recognize and develop their kids’ interests. That’s what makes the Orion Observer II such a great buy. Seeing the craters on the moon or the rings of Saturn for the first time can not only affirm your kids’ curiosity about space but also expand their concept of the universe—and they can get those goosebumps while learning through this altazimuth refractor telescope.

The Orion Observer II is built to impressive specifications, with a 700mm focal length that provides 71x magnification for viewing the vivid details of planets in our solar system. True glass lenses (not plastic) are a bonus at this price point, and combined with either included Kellner eyepieces (25mm and 10mm), the telescope delivers crisp views of some of space’s most dazzling objects. 
Kids and parents can locate celestial objects with the aid of the included red-dot finder. The kit also includes MoonMap 260, a fold-out map that directs viewers to 260 lunar features, such as craters, valleys, ancient lava flows, mountain ranges, and every U.S. and Soviet lunar mission landing sites. An included copy of Exploring the Cosmos: An Introduction to the Night Sky gives a solid background before they go stargazing. And with its aluminum tube and tripod, the entire rig is very portable, even for young ones, with a total weight of 4.3 lbs.

Best budget: Popular Science by Celestron Travel Scope 70 Portable Telescope

EDITOR”S NOTE: Popular Science has teamed up with Celestron on a line of products. The decision to include this model in our recommendations was made by our reviewer independently of that relationship, but we do earn a commission on its sales—all of which helps power Popular Science.

Why it made the cut: With its feature set, portability, and nice price point, this scope is ready for some serious stargazing without a serious investment.

Specs

  • Focal length: 400mm
  • Aperture: 70mm, f/5.7
  • Magnification: 168x

Pros

  • Bluetooth remote shutter release
  • Ships with two eyepieces
  • Pack included

Cons

  • Lacks optical power for deep space

Getting out of town, whether you’re camping in the wilderness or taking a drive in the countryside, is one of the attractions of stargazing. Out in the great wide open, far away from streetlights, the stars explode even to the naked eye. Add a handy telescope like the Popular Science Celestron Travel Scope 70 Portable Telescope—our pick for the best portable telescope under $500—and you’ll see much farther into space. The fact that it’s as affordable as it is moveable just adds to the value.

The Popular Science Celestron Travel Scope 70 Portable Telescope is a well-equipped refractor telescope built for backpacking and adventuring but without skimping on cool gadgets. Whether you’re gazing at celestial or terrestrial objects, the smartphone adapter will aid you in capturing images with your personal device, with an included Bluetooth remote shutter release.

Designed with portability and weight in mind, the entire package fits into an included pack with a total of 3.3 lbs.—that includes the telescope, tripod stand, 20mm and 10mm eyepieces, 3x Barlow lens and more. Download Celestron’s Starry Night software to help you get the most from your astronomy experience.  

FAQs

Q: What is the most powerful telescope for home use?

The most powerful telescope for home use from this list is the Sky-Watcher Skymax 102, which tops out at 130x magnification with its included eyepieces.

Q: Is a 90mm telescope good?

Yes, a 90mm telescope is good for viewing planetary features like the rings of Saturn and the Great Red Spot on Jupiter.

Q: How much does a telescope cost?

The cost of a telescope varies depending on the brand, model, and construction but there are plenty of affordable options—like the ones on this list.

Q: How powerful does a telescope have to be to see planets?

A telescope with a minimum 60mm aperture has enough power to see planets.

Q: What size telescope do I need to see the rings of Saturn?

You can see the rings of Saturn with as low as a 60mm aperture. 

Q: What size telescope do I need? 

The size of telescope you need depends on what you want out of it. This list of best telescopes under $500 gives a good rundown on telescope types, sizes, and uses.

Final thoughts on the best telescopes under $500

Although this group of sub-$500 scopes is fairly diverse, the Celestron StarSense Explorer DX 130AZ stands out in our best telescopes under $500 as the best place to start your interstellar journey due to its versatility and sky recognition app, which make for a fun evening of guided tours through the star patterns, no experience necessary. 

Best telescopes for astrophotography 2021

If you are looking for one of the best telescopes for astrophotography, then you have come to the right place. A good telescope can bring the secrets of the night sky closer, allowing you to explore distant galaxies from the comfort of your own garden. However, if you enjoy watching the night sky but also want to take some astrophotography, then figuring out what tools you'll need to get the job done can be a little tricky.

Fortunately, there are so many great options for the best telescope for astrophotography that users are often spoiled for choice. This means you can determine exactly which product is best for you and your needs. Whether you're looking for a budget telescope to explore your new hobby, or you're an experienced astrophotographer looking to upgrade your kit, we've listed our favorite astrophotography telescopes below.

Now, without further ado, we invite you to boldly go where no one has gone before and discover the best telescope…

Best Telescopes of 2021

-amateur.

Optical design: Newtonian reflector | Aperture: 130mm | Focal length: 650 mm | Focal ratio: f/5 | Magnification (with eyepieces included): x33 and x65 | Finderscope: Built-in star pointer | Install: Equatorial Motorized R/A for Object Tracking | Resolution: 0. 88 arc seconds | Limiting magnitude: 14.2 | Maximum usable magnification: x250

  • + Large aperture
  • + Motor driven equatorial mount
  • + Suitable for long exposure astrophotography
  • - Pretty tricky to set up
  • If you're looking for the best telescope for astrophotography and serious stellar journaling, we recommend the Celestron Astromaster 130EQ, which offers a great package for the slightly more experienced amateur astronomer. It comes with an equatorial tracking mount that allows the user to try their hand at slower shutter speed astrophotography, and its large aperture will begin to show more detail on all sorts of objects. Its optical system - a Newtonian reflector - will require collimation to reach its potential. This process can be tricky for beginners, but with practice it's easy to achieve. The full package here would be a smart choice as a first serious telescope for astrophotography, and with practice and patience offers the potential for some impressive imaging.

    2. Celestron Nexstar 5SE

    Quality optics with many extra features

    Optical design: Schmidt Cassegrain | Aperture: 130mm | Focal length: 1250 mm | Focal ratio: F/10 | Magnification (with eyepieces included): x50 | Finderscope: Star Pointer | Install: Alt-Az goto with object tracking | Resolution: 0.88 arc seconds | Limiting magnitude: 13.8 | Maximum usable magnification: x300

  • + Excellent user-friendly design
  • + Sufficient aperture to show a lot of detail
  • + Complete GoTo system with simple alignment procedure
  • - Not ideal for long exposure telephoto photography among amateur astronomers around the world thanks to its user-friendly design. The Celestron Nexstar 5SE is the entry level system for this type of telescope. This well-designed telescope is suitable for most types of astrophotography, although it is perhaps best suited for astrophotography of the Moon and planets, as opposed to nebulae and galaxies, due to the longer focal length. A wide range of accessories are also available, such as an automatic night sky alignment device.

    3. Sky-Watcher Heritage-114P Virtuoso.

    Great choice for Canon DSLR users

    Optical design: Newtonian reflector | Aperture: 114mm | Focal length: 500mm | Focal ratio: f/4.38 | Magnification (with eyepieces included): x20 and x50 | Finderscope: Red Dot Finder | Install: Alt-Az Computerized Multifunction Tracking Mount | Resolution: 1.0 arc second | Limiting magnitude: 13.9 | Maximum usable magnification: x250 | Power Required: Power Supply 12VDC, 1A (Positive Tip)

  • + Advanced Features at a Budget Price
  • + Go to Upgrade
  • - Without Tripod
    GoTo Handset Sold Separately
  • - Collimation Required

    9 The Sky-Watcher Heritage 114P Telescope, while small, offers some great features for those who want to use a small telescope for astrophotography. The mount provides a stable observation platform and also allows you to track objects in the night sky once they have been detected. The telescope can be automatically rotated in both axes at five different speeds using the mount's electronic keypad. Another interesting feature is the Freedom-Find dual encoder technology, which allows you to manually move the telescope on any axis without losing alignment or position information. This is extremely convenient and provides great flexibility during observation sessions. The telescope also includes a Canon-D electronic shutter cable that allows you to automatically control your DSLR in six preset positions. Also worth noting is the smaller 90mm Sky-Watcher Heritage 90P.

    4. Celestron Inspire 100AZ refractor.

    The perfect choice for beginners, whatever camera you use!

    Optical design: Refractor | Diaphragm: 100mm | Focal length: 660 mm | Focal ratio: f/6. 5 | Magnification (with eyepieces included): 33x, 66x | Finderscope: StarPointer Pro | Install: Manual Alt-Az with tripod | Resolution: 1.45 arc seconds | Limiting magnitude: 12.5 | Maximum usable magnification: 214x | Power Required: N/A

  • + Easy to Use
  • + Low Cost
  • + Good for Kids
  • - Limited to Basic Short Exposure Photography
  • Celestron Inspire Refractor - Best Telescope for Just Starting Astrophotography work, or if you have a limited budget. Although its mount is a basic unpowered alt-azimuth design, it will still allow you to capture impressive images of the lunar surface - which is by far the best starting point for trying to photograph. This telescope comes with a built-in smartphone adapter, which means you can attach your phone to the eyepiece to take photos. You can also easily mount your digital SLR to your telescope using an inexpensive adapter (sold separately).

    5. Skywatcher Startravel-120 AZ-3

    This telescope offers many extra features for the price

    Optical Design: Refractor | Aperture: 120mm | Focal length: 600mm | Focal ratio: f/5 | Magnification (with eyepieces included): x24, x48, x60, x120 | Finderscope: Red Dot Finder | Install: EQ3-2 Equator Mount | Resolution: 1.0 arc seconds | Limiting magnitude: 12.7 | Max usable magnification: x240

  • + IOS/Android Wi-Fi controlled tracking mount
  • + Large aperture for more flexibility
  • Alt-AZ mount limits long exposure potential
  • Skywatcher Startravel-120 - great telescope for the price. Not only do you get a decent-sized 120mm refractive telescope, but you also get the highly respected EQ3-2 equatorial mount. It's easy to set up and use, giving you quick access to a wide range of targets. The mount also has a DSLR shutter release port for camera control. The telescope itself is well suited for general observation and photography, but is perhaps best suited for lunar and planetary photography.

    6. Skywatcher Skymax 127 SynScan AZ GoTo

    Excellent starting sight for planetary photography

    Optical design: Maksutov reflector | Aperture: 127 mm | Focal length: 1500 mm | Focal ratio: F/11.8 | Magnification (with eyepieces included): x60, x120, x150 and x300 | Finderscope: Optical Finderscope 6x30 | Install: Alt-Az GoTo with Object Tracking | Resolution: 0.9 arc seconds | Limiting magnitude: 14.0 | Maximum useful magnification: x300

  • + GoTo tracking mount
  • + Long focal length
  • - Not suitable for long exposure photography
  • This telescope is a good example of what is well suited for a certain area of ​​astrophotography: due to its long focal length (1500mm) it is best for observing and photographing the moon and planets. The telescope is also equipped with a Barlow lens to increase the focal length for photography and high magnification observations. The whole package would be a great choice for those interested in observing the Moon and planets, and its aperture is large enough to easily spot details like Jupiter's Great Red Spot or clear views of Saturn's ring system. However, it is not very suitable for long exposure photography of nebulae or galaxies. Available with and without Go-To mount.

    7. Meade ETX90-RT

    This compact design offers excellent all-round performance.

    Optical design: Maksutov reflector | Diaphragm: 90 mm | Focal length: 1250 mm | Focal ratio: F/13.8 | Magnification (with eyepieces included): x48, x129 | Finderscope: Red Dot Finder | Install: Alt-Az GoTo with Object Tracking | Resolution: 1.27 arc seconds | Limiting magnitude: 13. 5 | Maximum usable magnification: x200

  • + Well established brand
  • + Flexible system for multiple purposes
  • + Very portable
  • - Expensive for aperture size
  • - Limited use for long exposure work a well-established multi-purpose telescope designed for beginner astrophotographers. It offers GoTo and tracking capability in a high quality, compact package. The rather large focal length of the telescope orients it more towards shooting the Moon and planets, but it can be used to photograph brighter nebulae and galaxies. It also features an AudioStar hand drawer with over 30,000 objects in its built-in speaker database. The telescope tube can be detached from the mount if you wish to use the scope on a different tripod. A wide range of different accessories are also available for the Meade ETX range.

    8. Sky-Watcher Explorer 150P EQ3 Pro.

    Powerful multi-purpose telescope capable of excellent imaging

    Optical design: Newtonian reflector | Aperture: 150mm | Focal length: 750 mm | Focal ratio: f/5 | Magnification (with eyepieces included): x30, x60, x75, x150 | Finderscope: Optical Finderscope 6x30 | Install: Equatorial GoTo with Object Tracking | Resolution: 0. 76 arc seconds | Limiting magnitude: 14.2 | Maximum usable magnification: x300

  • + Impressive performance in all areas
  • + The right mount for serious astrophotography
  • - Complete setup
  • The Skywatcher Explorer 150P is an excellent choice for those who want to upgrade beginner telescopes. Its large 150mm aperture will provide detailed images of planetary targets as well as a wide range of nebulae and galaxies. It also comes with a proper equatorial GoTo mount designed for longer exposure astrophotography, although that mount and Newtonian design do mean the setup is more difficult. The telescope is equipped with a range of useful accessories such as a polar telescope to make polar alignment quick and easy.

    9. Skywatcher Evostar 120

    A telescope like this can give you the pleasure of observing for a lifetime.

    Optical design: Refractor | Aperture: 120mm | Focal length: 1000mm | Focal ratio: f/8. 3 | Magnification (with eyepieces included): x40, 100 | Finderscope: Optical Finderscope 9x50 | Install: Equatorial GoTo with Object Tracking | Accessories included: DSLR direct connection | Resolution: 0.95 arc seconds | Limiting magnitude: 13.8 | Maximum usable magnification: x250

  • + Powerful and easy to use
  • + Trouble-free operation
  • - Quite large and bulky lovers. Today, much lower prices have made such tools available to a much larger number of astrophotography enthusiasts. Such a refractor telescope with a larger aperture will provide both visual and photographic use for a lifetime. It is ideal for almost any area of ​​astrophotography. The optional Advanced GoTo Equatorial Mount will give excellent results in virtually every aspect of astrophotography, from planetary to long exposure deep sky photography; it can also be bought in OTA (optical tube assembly) form, allowing you to pair it with any mount.

    10. Celestron Advanced VX 8" Edge HD

    Superb design and high performance

    Optical design: Schmidt Cassegrain | Aperture: 203mm | Focal length: 2032mm | Focal ratio: F/10 | Magnification (with eyepieces included): x150 | Finderscope: Optical Finderscope 9x50 | Install: Equatorial High Precision GoTo with Object Tracking | Resolution: 0.57 arc seconds | Limiting magnitude: 14.5 | Max usable magnification: x350

  • + Quality optics
  • + Advanced Precision GoTo mount
  • + Excellent performance
  • - Expensive for aperture
  • , which gives an idea of ​​a telescope that is affordable for people on a big budget. It is an advanced amateur telescope capable of doing just about any task you can throw at it. With superior quality optics and a superb precision mount, it delivers a high level of performance in virtually all areas of astrophotography. It also has the added bonus of a superbly user-friendly system. Such a telescope will give pleasure from observations to all but the most demanding.

    Astrophotography features to watch out for

    • Motorized mount: This will track the movement of the sky over time. The rotation of the Earth means that celestial objects move slowly across the sky from east to west, about the apparent diameter of the full moon every two minutes. If you are using telescopes without a motorized mount, objects will appear to drift out of the field of view of the telescope and you will constantly have to manually re-center the target object. This means that you will only be able to shoot the Sun, Moon and planets with fast shutter speeds. A telescope with a motorized sky-tracking mount means you can also try your hand at long exposure astrophotography.

    • Equatorial mount: These are similar to regular pan and tilt tripods, but with the pan axis tilted to match the tilt of the ground. This means you can follow the stars and planets across the sky by moving the telescope on one axis, motorized or otherwise.

    • Focal length: In astrophotography, this means the same as in normal photography. The longer the focal length, the narrower the angle of view and the greater the magnification. You should choose the focal length according to the size of the objects you are interested in.

    • Diaphragm or objective size: In , the aperture of the telescope, or the size of its lens, if refractive, is important. The larger the aperture of a telescope, the more light it collects and the finer details it can resolve. Generally speaking, a refractor telescope with a lens smaller than 75 mm is not worth considering. "Aperture" here does not mean the same thing as "aperture" in photography. In astrophotography, what photographers call "aperture" would be called "focal ratio".

    • Refractor Telescope: This is a design familiar to most people that uses optical lenses to focus on celestial objects. In essence, they are similar to super-telephoto lenses, but designed for stargazing. This is the easiest type to set up and use.

    • Newtonian reflector: They are shorter and thicker and use a parabolic mirror to reflect the image from the tube to the tilt mirror near the front. Mirror designs are more compact and often more affordable, but may require calibration or "collimation".

    • Maksutov-Cassegrain reflector: These also use mirrors, but the secondary mirror at the front reflects the image back down the tube and through a hole in the primary mirror at the back to the eyepiece or camera adapter at the back. They are similar to the "reflex lenses" once popular (and still being produced) for cameras.

    • Telescopic camera adapter: You will usually need an adapter to mount the camera on your telescope.

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    Astro Video Cameras - A to Z

    A few years ago, the approach of another birthday gave rise to philosophical moods in me. Not only about life in general, but also about amateur astronomy. How far can I see? What is actually in deep space? I saw many amazing objects, but I felt that this was just the tip of the iceberg. I didn't want to look at the same old clusters, nebulae and galaxies - I wanted to dig deeper and see what lay beyond the bright gems.

    Astrovideo has become a popular way to enjoy astronomy. Detailed views of targets like the Lagoon Nebula are available with modest equipment in less than ideal terrain.

    Rod Mollis

    How can I do it? For example, visually with a large telescope. Hobbyists with 20-, 30- and even 40-inch Dobson buckets are no longer a rarity. The problem with this idea is that I would have to move this hulk every time I wanted to watch. Innovative solutions have made large amateur telescopes easier than ever, but only a 25-inch Newton can be made small. And I decided a long time ago that I would not let my telescope dictate the choice of vehicle.

    What about astrophotography? I have failed a couple of times along the way, shooting with film, CCD cameras and digital SLRs. I like photographing the sky, but that's not quite what I had in mind. Working well with a traditional camera means focusing on one or two subjects per evening. And given the local weather, that means I could "see" eight or ten new objects in a year. I wanted to go beyond these limits in my research.

    Then I remembered the video. I experimented a bit, shooting the Moon and planets with my camcorder (video recording camera). I liked the results, but I couldn't capture dim objects. The standard video camera exposure does not give enough time to accumulate light from a distant galaxy. I wondered what would happen if I could achieve a slower shutter speed with a video camera?

    Astrovideo surveillance is not designed to create stunning astrophotos. Its main purpose is simply to identify faint objects on a video monitor or laptop screen. The image data of M27 (left) and M51 were recorded in 15 and 28 seconds, respectively, with the Celestron C8 8-inch Schmidt-Cassegrain telescope.

    Rod Mollis

    I didn't have to think long. Some of my friends have adopted "astrovideo," as they call it, and regularly capture the faintest objects with video cameras. They view them in real time, without a computer, just a camera and a monitor.

    It was even more tempting that they were doing it in a lighted area! My buddies used special cameras from MallinCam (mallincam.com), Cosmo-Logic Systems (formerly StellaCam, cosmologicsystems.com), and Orion telescopes and binoculars (oriontelescopes.com). All of these cameras have something in common that allows them to capture deep sky objects.

    The most important difference between astronomical video cameras and recording cameras (camcorders) is their ability to provide long exposures. Those that are cheaper allow exposure of 5-10 seconds. It would seem not much, but it is enough to reveal surprisingly dim objects. My first astronomical video camera was limited to a 10-second exposure, but showed 15th-magnitude galaxies without difficulty with an 8-inch telescope.

    By equipping your observation device with an astrovideo camera, you will increase the aperture of the telescope by almost three times. This 22-inch Dobson Starstructure, when combined with the MallinCam Xtreme camera, typically detects dimmer galaxies than those shown in popular star atlases.

    Rod Mollis

    It turns out that I enjoy experimenting with astrovideo. It was like a visual observation - not like puffing over a CCD camera and a computer. Camcorders start a new exposure as soon as the previous one is completed. When every 10 seconds the frame automatically changes on the screen, it seems as if you are observing objects in real time. An added benefit was the good performance of the camera in my less than ideal terrain, thanks to the wide dynamic range of its CCD detector.

    However, what really inspired me was the ability of astrovideo to reveal the dim and distant. How deep can you go? It is believed that the astrovideo camera multiplies the aperture of the telescope by a factor of three, but this estimate may turn out to be conservative. I have repeatedly observed faint objects like the Horsehead Nebula in large telescopes, but even the 42-inch instrument has never provided the level of detail in the eyepiece that was observed in the 11-inch Schmidt-Cassegrain with my video camera.

    I loved my first camera, the discontinued StellaCam 2. But despite the fact that it could easily display objects like the Horsehead Nebula, to do this, I had to set the gain (sensitivity) in manual settings to such a level that the image on the video screen became noisy, with a disgustingly uneven background. In response to this slight inconvenience, I began to consider switching to a more sensitive camera. More advanced models, such as the StellaCam 3 or MallinCam Xtreme, allowed exposures of several hours (although it would hardly ever be needed).

    When it came time to replace my StellaCam 2 I turned to MallinCams as they had color sensors and settled on the MallinCam Xtreme which was a big step up from my previous camera.

    Even if the gain is set to a low level, images from astrovideo cameras, as in the case of CCD cameras, show significant thermal noise. The internal heat causes electrons to be released from the matrix, and they appear in photographs as "false stars". MallinCam Xtreme is electronically cooled to reduce thermal noise, just like dedicated CCD cameras.

    The results I quickly achieved with Xtreme are nothing short of stunning. The transition from a 10 second exposure to a 1 minute exposure was dramatic. Not only was I able to keep the gain low, resulting in more uniform images on the monitor, I was able to see more detail than with short exposures, no matter how high the gain was set on the StellaCam.

    On Xtreme's first night, Orion was hovering in the sky, so naturally I turned the 11" Schmidt-Cassegrain onto the Horsehead, set the exposure to 56 seconds, and started shooting. When the first image formed on the screen, my jaw dropped! The "background", IC434, was bright red. The reflection nebula to the northeast, NGC 2023, was blue with ice. But what struck me most was the dark nebula itself. Details were visible that I only saw in long exposure photographs, and now I saw them without a computer and long hours of processing.

    One of the advantages of small detectors in astrovideo cameras is that they can use strong focus reducers without introducing unwanted distortion into star images, allowing you to turn your f/10 Schmidt-Cassegrain into an f/3.3 wide-angle instrument.

    Not only did the astrovideo cameras allow me to see dim objects, but it turned out that they also met my other requirement: to see a lot of good things every night. Thanks to the simplicity of my installation, I made a considerable journey in one evening. During my work on the Herschel Project (S&T: August 2012, p. 60) I was tasked with seeing all 2500 of William and Caroline Herschel's deep sky objects, and I often recorded 100 or more dim objects per night.

    What does astrovideo mean to you? Perhaps your goals are similar to mine, but if you are more interested in beautiful pictures, all this may not be to your liking. Frames made from video will never look as good as images created by astronomical CCD cameras, although some video users have come close to this by using video capture cards to transfer analog video from the camera to a computer for processing.

    Astrovideo is also not for those who are not satisfied with a bunch of expensive equipment between the sky and the observer. For a minimal set, you will need a camera, monitor, power supply and cables. And if you want to record your videos for later viewing, then also a VCR. How much does it all cost? The best cameras are relatively inexpensive compared to astronomical CCD cameras ($500 to $2,000 depending on make and model), but you still have to factor in the cost of complementary items.

    Rod Mollis

    Most cameras are equipped with a small AC power supply, but in a dark, out-of-the-way observation area, they are often useless. I connect my camera with a manufacturer's DC power cord to a 12 volt car battery. By the way, I have found that running the camera on battery produces less noisy video than if I powered it from a wall outlet through an adapter.

    The type of monitor you need depends on where you are watching. If you're working from home with access to an outlet, you can use any TV/monitor with a standard composite video input. In a remote area, you usually need one that runs on direct current. I use one of the common portable DVD players with an external video input jack, which allows me to use it as a monitor. The screen is small but looks good and has a long battery life.

    I save video from my camera with a video recorder that records my pictures to an SD memory card. It runs all evening on its battery, it's small and handy. I had previously used a home DVD recorder and it worked great, but I connected it through an inverter to a large marine battery, which was heavy and quickly drained by the inverter.

    Here I am a dunce! Forgot to mention accessory #1 you need: a telescope. What type? To go beyond the Moon and the planets (most modern astrovideo cameras are good for planet imaging as well), you need a telescope that meets three requirements: it needs wide-angle optics, it needs to have the right focus for the camera, and it needs to be motorized—preferably with a GoTo pointing system.

    Some Newtonian reflectors do not have enough focal length to use any kind of camera that is inserted directly into the focuser of the telescope. Refractors usually work without modification. Telescopes that move their primary mirror when focusing, such as Schmidt-Cassegrain or Maksutov-Cassegrain, rarely have camera problems due to their wide focusing range.

    The light-sensitive matrices of astrovideo cameras are small, so a telescope with a wide field of view is required for satisfactory framing of most objects. The ideal focal length for a video telescope is between 500 and 1000 mm. Do you have more? This is easy to fix with focus reducers. I use an f/3.3 reducer to turn my overly long 2000mm Schmidt-Cassegrain into a more video-friendly 660mm.

    I am often asked if it is possible to take on video with a conventional Dobsonian telescope that does not have the ability to track stars. Unfortunately the answer is no. The tiny matrices of astrovideo cameras make manual tracking of objects (even planets) a real frustration. The good news is that Dobsonian reflectors can be purchased inexpensively on an alt-azimuth or equatorial platform. Small video chips also make it difficult to find and track objects, so a GoTo telescope that automatically finds objects is much more efficient and less inconvenient when using video.

    Installing an astrovideo camera is as easy as shelling pears - you just need to replace the eyepiece with an astrovideo camera, after which your telescope becomes a camera lens.

    Rod Mollis

    So, now you have a telescope and a video camera. How do they fit together? Easily. The camera goes straight to the focuser. No eyepiece is required, and astrovideo cameras don't have lenses—your telescope becomes a lens. Most cameras are equipped with a 1¼" attachment that allows you to insert them directly into the focuser.

    There remains the question of choosing a camera model. I can’t say that the top models MallinCam Xtreme or StellaCam 3 will not suit a beginner, but you can start with simple and inexpensive ones. Both the Orion StarShoot Deep Space Video Camera and the MallinCam Jr are easy to use and deliver great results right from the start. They are limited to a 4 second exposure, but with a similar exposure on the StellaCam 2, I was able to display hundreds of objects.

    I've seen a lot of things using astrovideo cameras in places like my modest yard or a light-lit group playground.


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