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Best of Telescopes
Best Telescopes for Kids Best Telescopes for Beginners Best Telescopes for Astrophotography Best Telescopes for Viewing Planets Best Telescopes for Eclipses Best Telescopes Under $500 All Telescopes Telescopes on Sale
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Celestron NexStar Celestron StarSense Explorer Refractors Reflectors Dobsonians Scmitd Cassegrain - SCT GoTo and Computerized Table Top Spotting Scopes Guide Scopes Solar Telescopes Optical Tube Assembly - OTA Astrographs All Telescopes
By Brand
Askar Celestron Explore Scientific Meade Orion SharpStar Sky-Watcher Tele Vue Unistellar William Optics All Telescopes
Start Here
Buying Your First Telescope So You've Got a Telescope: Now What?
Astrophotography
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Deep Sky Planetary and Lunar Guiding Cameras Solar All Cameras
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LRGB Filters SHO Filters 3nm Filters Light Pollution Dual Band UV/IR Cut All Filters
Accessories
Auto Focusers and EAF Filter Wheels Filter Drawers Focusing Masks Off Axis Guiders - OAG Smartphone Adapters
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ZWO Optolong Antlia QHY Orion Baader Planetarium Sharpstar Astrophotography William Optics Astrographs All Astro PrimaLuceLab
Start Here
Astrophotography for Beginners How to Use a Star Adventurer Tracker How to Shoot the Moon
Solar Photography
Daystar Instruments - Quark Meade PST, Coronado Lunt
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Alt Azimuth Equatorial GoTo and Computerized Harmonic Manual Star Trackers All Mounts and Tripods
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Home / Dobsonian Telescopes

Dobsonian Telescopes

Why we Love Dobsonian Telescopes

Dobs are one of the best options for beginners who want to learn the sky without a computerized mount.  Also known and light-buckets, these can open the universe to you.  The human eye is capable of seeing 10,000 stars.  A 10-inch Dobsonian telescope can show you 50,000,000!  These are great tools for exploring the universe

At their heart, these are Newtonian telescopes on a simple altazimuth mount.  They were popularized in the 1960's by John Dobson.  Dobsonians vastly improved the aperture/dollar ratio and made large aperture (relatively) inexpensive for amateur astronomers. 

Because the mounts are so simple, these instruments are economical, and allow you to manually find and track celestial objects.  They're a great way to learn how to star-hop and find your way between constellations, asterisms and other things to see in the sky. 

What to See With a Dobsonian Telescope

Dobs have huge primary mirrors paired with medium focal lengths.  This makes it easy to get extraordinary views of our solar system.  You'll see incredible detail on the moon, and planets.  The Cassini division in the rings of Saturn will be visible, along with the bands of Jupiter and the Galilean moons.  

These telescopes are ideal for visually observing faint deep-sky objects like nebulae and galaxies because they take in so much light. Taking in wide field views of the Milky Way is a real treat as well.  The Dobsonians we have come with focusers that will accept 2" and 1.25" eyepieces offering a wide variety of magnifications and fields of view.  

Advantage of Using a Dobsonian Telescope

Dobs are designed to be easy to use, reliable, and to gather as much light as possible.  This means that there's a great 'wow' factor with a dob, and they won't break the bank. They're also easy to set up.  

We don't recommend Dobsonian telescopes for deep sky astrophotography because of their inability to smoothly track for long exposures.  They do well with lunar and planetary astrophotography though.  

Collimating a Newtonian Telescope

Collimating is the process of aligning the optics in a telescope. There are a few ways to tell whether a dobsonian needs collimation, but the easiest way to check is to find a bright star, defocus the telescope and look at the rings around the bright spot.  If they're concentric (evenly spaced around the bring spot) the dob is well collimated.  

There's all kinds of information online about frequency of collimation, with answers ranging from every time you use the dob to once a year.  The reality is that it needs to be done when it goes out of alignment which will be a function of how much it get's moved around and what kind of forces its subjected to.  

Collimating a dob means aligning the primary mirror and the secondary mirror. We have a great video on laser collimation (it's easier than it sounds).  

Popular Sizes of Dobsonian Telescope

We have 12 inch, 10 inch, 8 inch, and 6 inch Dobs with flex tube, go-to, and solid tube options.  We have some table-top Dobs as well, which work well in library programs and for kids.  

8 Inch Dobs

8-inch dobsonian telescopes are one of the most recommended beginner telescopes around. There are several reasons for this, but the most important is that an 8 inch is big enough to start showing detail in deep sky objects. That means seeing nebulosity, and seeing spiral structure in something like the andromeda galaxy. Our favourite 8" dobs are the Sky-Watcher Classic 200p 8" Dobsonian Telescope and the Celestron StarSense Explorer Smartphone App Enabled 8" Dobsonian Telescope. 

10 Inch Dobs

10-inch dobsonian telescopes are our second most popular size, and a shop favourite. A 10-inch dob can show you 50,000,000 stars! They gather 44% more light than the 8-inch dobs, which translates to brighter, more detailed images. That's particularly true when looking at deep sky objects like nebulae and galaxies. Our favourite 10" dobs are the Sky-Watcher Classic 250p 10" Dobsonian Telescope and the Celestron StarSense Explorer Smartphone App Enabled 10" Dobsonian Telescope. 

Different Dobsonian Options

Solid tube versions will need less frequent collimation, and they can be used for solar viewing with the right filter.  Flex tube, or truss tube or collapsible dobs are nice because of the increased portability that you get from them.  The trade off's are that they're not suitable for solar viewing, and they'll need more frequent collimation. 

A goto dob is simply a computerized alt azimuth base to have it find and track different celestial objects.  You can find goto bases with solid or flex tube designs.

What Should you Buy With a Dobsonian Telescope

Astronomy is a hobby full of marginal gains, and there are all kinds of accessories that will help you to get the most out of your dob.  There are all kinds of eyepieces that will help you to get the right magnification and field of view for objects.  There are also star charts and books that can help you to navigate the sky.  We recommend everyone get a laser collimator and a lens pen to maintain their dob.   

In Stock 15% OFF
Sky-Watcher
Sky-Watcher Virtuoso GTi 150P (S21205)
5 reviews
$400.00 $470.00

Sky-Watcher’s all new Virtuoso GTi collapsible tabletop Dobsonian is the ultimate combination of convenience, flexibility, and light-gathering power – now with Wi-Fi!

In Stock 16% OFF
Sky-Watcher
Sky-Watcher Classic 200P 8" Dobsonian Telescope (S11610)
1 review
$550.00 $655.00

This 8" dob is a great option for anyone looking for get some great deep sky views. You'll detail outside of the solar system so you can see nebulosity and structure in far off galaxies.

In Stock 15% OFF
Sky-Watcher
Sky-Watcher Heritage 150 Collapsible Tabletop Dobsonian Telescope (S11710)
1 review
$265.00 $310.00

By using a lightweight 150mm parabolic primary mirror and a compact, manual azimuth mount, the Heritage 150 is the perfect blend of portability and aperture, just as Newton intended.

In Stock 15% OFF
Sky-Watcher
Sky-Watcher Heritage 130 Collapsible Tabletop Dobsonian Telescope (S11705)
3 reviews
$235.00 $275.00

By using a lightweight 130mm parabolic primary mirror and a compact, manual azimuth mount, the Heritage 130 is the perfect blend of portability and aperture, just as Newton intended.

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Celestron
Celestron Starsense Explorer 10" Smartphone App Enabled Dobsonian Telescope (22471)
5 reviews
$1,099.00

Leverage your phone to navigate the night sky! These offer expansive views, and easy navigation for beginners and experts alike. Just download the app and it will give you directions to Saturn, Jupiter and 40k...

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Celestron
Celestron Starsense Explorer 8" Smartphone App Enabled Dobsonian Telescope (22470)
5 reviews
$799.00

Leverage your phone to navigate the night sky! These offer expansive views, and easy navigation for beginners and experts alike. Just download the app and it will give you directions to Saturn, Jupiter and 40k...

In Stock 16% OFF
Sky-Watcher
Sky-Watcher Classic 250P 10" Dobsonian Telescope (S11620)
3 reviews
$765.00 $910.00

Dobsonian telescopes are some of the best beginner telescopes available. They're simple to use, and open the night sky up to everyone. These scopes will give incredible views of the planets, and will open the...

In Stock 15% OFF
Sky-Watcher
Sky-Watcher Classic 150P 6" Dobsonian Telescope (S11600)
$390.00 $460.00

These 6" dobs are great, we use them in school programs all the time. You can't get a better view for the price. They're fantastic for viewing the planets and messier objects.

Celestron
Celestron FirstScope Telescope (21024)
$73.00

FirstScope pays tribute to the men and women who brought us one step closer to understanding the universe around us! In 1609, world-renowned Italian scientist, Galileo Galilei, introduced an elementary telescope to the growing astronomy...

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Sky-Watcher
Sky-Watcher Flextube 250P 10" Collapsible Dobsonian Telescope (S11720)
2 reviews
$860.00 $1,020.00

Developed in the 1970s, the Dobsonian-style telescope is an inexpensive solution for bright, detailed visual observing using a simple design. The name '˜Dobsonian' comes from the telescope's inventor, John Dobson, a Vedanta monk who popularized...

15% OFF
Sky-Watcher
Sky-Watcher Flextube 200P 8" Collapsible Dobsonian (S11700)
1 review
$645.00 $755.00

Dobsonian telescopes are some of the best beginner telescopes available. They're simple to use, and open the night sky up to everyone. These scopes will give incredible views of the planets, mind blowing views of...

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Sky-Watcher
Sky-Watcher Flextube 300P 12" SynScan GoTo Collapsible Dobsonian Telescope (S11820)
2 reviews
$2,150.00 $2,560.00

Ranging from the standard 8 to a whopping 16 inches in diameter, Flextube SynScan Dobsonians are precision engineered instruments that will allow you to easily find and enjoy viewing night sky treasures such as planets...

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Celestron
Celestron Starsense Explorer 12" Smartphone App Enabled Dobsonian Telescope (22472)
No reviews
$1,499.00

Leverage your phone to navigate the night sky! These offer expansive views, and easy navigation for beginners and experts alike. Just download the app and it will give you directions to Saturn, Jupiter and 40k...

In Stock 15% OFF
Sky-Watcher
Sky-Watcher Flextube 300P 12" Collapsible Dobsonian Telescope (S11740)
$1,450.00 $1,715.00

For decades, the Dobsonian stood as a DIY staple of amateur astronomy, usually constructed with two mirrors, a tube and a base. Often referred to as '˜light buckets', Dobsonians provide users with the highest possible...

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Celestron
Celestron Starsense Explorer 114mm Smartphone App Enabled Tabletop Dobsonian Telescope (22480)
No reviews
$349.95

Leverage your phone to navigate the night sky! These offer expansive views, and easy navigation for beginners and experts alike. Just download the app and it will give you directions to Saturn, Jupiter and 40k...

In Stock 14% OFF
Sky-Watcher
Sky-Watcher Virtuoso GTi 130P (S21210)
No reviews
$375.00 $435.00

Sky-Watcher’s Virtuoso GTi collapsible tabletop Dobsonian is the ultimate combination of convenience, flexibility, and light-gathering power – now with Wi-Fi!

In Stock
Celestron
Celestron Starsense Explorer 150mm Smartphone App Enabled Tabletop Dobsonian Telescope (22482)
No reviews
$559.95

Leverage your phone to navigate the night sky! These offer expansive views, and easy navigation for beginners and experts alike. Just download the app and it will give you directions to Saturn, Jupiter and 40k...

In Stock
Celestron
Celestron Starsense Explorer 130mm Smartphone App Enabled Tabletop Dobsonian Telescope (22481)
No reviews
$449.95

Leverage your phone to navigate the night sky! These offer expansive views, and easy navigation for beginners and experts alike. Just download the app and it will give you directions to Saturn, Jupiter and 40k...

Special Order 16% OFF
Sky-Watcher
Sky-Watcher Flextube 350P SynScan GoTo Collapsible Dobsonian (S11830)
No reviews
$3,040.00 $3,615.00

Sky-Watcher’s Flextube SynScan GoTo Collapsible Dobsonian series are the telescopes your mother warned you about. Big aperture, bigger attitude, with all the innovations that make Sky-Watcher the obvious choice when hunting for that Goldilocks zone...

Special Order 16% OFF
Sky-Watcher
Sky-Watcher Flextube 400P SynScan GoTo Collapsible Dobsonian (S11840)
No reviews
$3,940.00 $4,680.00

Sky-Watcher’s Flextube SynScan GoTo Collapsible Dobsonian series are the telescopes your mother warned you about. Big aperture, bigger attitude, with all the innovations that make Sky-Watcher the obvious choice when hunting for that Goldilocks zone...

In Stock 16% OFF
Sky-Watcher
Sky-Watcher Flextube 250P SynScan GoTo Collapsible Dobsonian (S11810)
No reviews
$1,440.00 $1,715.00

Sky-Watcher’s Flextube SynScan GoTo Collapsible Dobsonian series are the telescopes your mother warned you about. Big aperture, bigger attitude, with all the innovations that make Sky-Watcher the obvious choice when hunting for that Goldilocks zone...

Special Order 16% OFF
Sky-Watcher
Sky-Watcher Flextube 200P SynScan GoTo Collapsible Dobsonian (S11800)
No reviews
$1,220.00 $1,450.00

Sky-Watcher’s Flextube SynScan GoTo Collapsible Dobsonian series are the telescopes your mother warned you about. Big aperture, bigger attitude, with all the innovations that make Sky-Watcher the obvious choice when hunting for that Goldilocks zone...

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