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Celestron – StarSense Explorer 8-inch Dobsonian Smartphone App-Enabled Telescope – Works with StarSense App to Help You Find Nebulae, Planets & More – 8” DOB Telescope – iPhone/Android Compatible
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Brand | Celestron |
Model Name | StarSense Explorer 8" Dobsonian |
Eye Piece Lens Description | 25mm eyepiece |
Objective Lens Diameter | 203 Millimeters |
Telescope Mount Description | Altazimuth Dobsonian base |
Product Dimensions | 49"D x 18.5"W x 19"H |
Focus Type | Manual Focus |
Power Source | Manual Operation Without External Power Source |
Finderscope | StarPointer™ red dot finderscope |
Item Weight | 43.4 Pounds |
About this item
- PATENTED STARSENSE SKY RECOGNITION TECHNOLOGY: This one-of-a-kind telescope uses patented, award-winning StarSense sky recognition technology and your smartphone to analyze star patterns overhead and calculate its position in real time.
- STARSENSE EXPLORER APP: The app generates a list of the best objects to view based on your exact time & location. View planets, brighter nebulae, galaxies, and star clusters from the city PLUS fainter, deep sky objects from darker sites.
- LARGE APERTURE 8” NEWTONIAN REFLECTOR: A high-quality parabolic primary mirror and high-reflectivity XLT optical coatings give you enough light gathering ability to view all the best celestial objects.
- MANUAL DOBSONIAN BASE: Large diameter altitude bearings with variable tensioning and Teflon azimuth bearings make it easy to point and aim your Dob. Follow the on-screen arrows to your desired target. When the bullseye turns green, it’s ready to view.
- UNBEATABLE WARRANTY & SUPPORT: Buy with confidence from Celestron, a leading telescope brand in California since 1960. Your purchase includes a 2-Year US Warranty and unlimited support from our team of US-based experts.
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Top Brand: Celestron
Product Description

StarSense Explorer 8” Smartphone App-Enabled Dobsonian Telescope
Unleash the power of your smartphonet o take you on a guided tour of the night sky, even if you’ve never used a telescope before.
Perfect for Beginners
With StarSense Explorer, there’s no learning curve. On your first night out, you’ll be able to view a variety of celestial objects such as planets, double stars, star clusters, nebulae, galaxies, and more.
High-quality 8” Newtonian
Enjoy dazzling views through this high quality 8-inch Dobsonian Newtonian reflector featuring a large-aperture parabolic primary mirror with XLT reflective coatings. This telescope has enough light gathering ability to view all the best
celestial objects.
Ultra-stable Dobsonian Base
The sturdy base features large diameter altitude bearings with variable tensioning, Teflon azimuth bearings, and braces on the side panels for extra stability.
Everything You Need in One Package
StarSense Explorer includes a 25mm Plössl eyepiece, a 2” Crayford focuser, the StarSense smartphone dock, a StarPointer red dot finderscope, an eyepiece rack, and more.
StarSense Sky Recognition Technology
This telescope uses patented technology and your smartphone to analyze star patterns overhead to calculate its position in real time with pinpoint accuracy.
The Night Sky at Your Fingertips
StarSense Explorer automatically generates a list of the best stars, planets, galaxies, nebulae, and more currently visible from your viewing location. Simply select one from the list and off you go! The StarSense Explorer app is compatible with iPhone 6 and up and most newer Android phones.
Just Follow the Arrows
Select an object and on-screen arrows appear, guiding you as you move the telescope. When the target is visible in the eyepiece, the bullseye turns green. The Universe is yours to explore!
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StarSense Explorer 8” Smartphone App-Enabled Dobsonian Telescope
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StarSense Explorer 10” Smartphone App-Enabled Dobsonian Telescope
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Customer Reviews |
4.5 out of 5 stars 136
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4.5 out of 5 stars 136
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Optical Design | Newtonian reflector | Newtonian reflector |
Aperture | 8" (203mm) | 10" (254mm) |
Focal Length (Focal ratio) | 1200mm (f/5.9) | 1200mm (f/4.7) |
Included Eyepiece / Magnification | 25mm Plössl, 48x | 25mm Plössl, 48x |
Finderscope | StarPointer red-dot finder | StarPointer red-dot finder |
Light Gathering Power | 841x as compared to the human eye | 1317x as compared to the human eye |
Optical Tube Dimensions | 44" x 9.5" diameter (1117.6mm x 241.3mm diameter) | 44" x 11.5" diameter (1117.6mm x 292.1mm diameter) |
Optical Tube Weight | 20.6 lbs (9.34 kg) | 29.2 lbs (13.24 kg) |
Base dimensions | 27" x 19" x 19" (650mm x 482.6mm x 482.6mm) | 26.5" x 21" x 21" (673.1mm x 533.4mm x 533.4mm) |
Base weight | 22.8 lbs (10.34 kg) | 25.6 lbs (11.61 kg) |
Compare with similar items
This Item ![]() Celestron – StarSense Explorer 8-inch Dobsonian Smartphone App-Enabled Telescope – Works with StarSense App to Help You Find Nebulae, Planets & More – 8” DOB Telescope – iPhone/Android Compatible | Recommendations | |||||
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Price | — | -10% $539.95$539.95 List: $599.95 | -24% $279.99$279.99 Typical: $369.99 | -18% $269.99$269.99 Typical: $329.99 | $3,999.00$3,999.00 | $641.41$641.41 |
Delivery | — | Get it as soon as Saturday, May 17 | Get it as soon as Saturday, May 17 | Get it as soon as Saturday, May 17 | Get it as soon as Wednesday, May 14 | Get it as soon as Saturday, May 17 |
Customer Ratings | ||||||
Sold By | — | Amazon.com | Dianfan-US | Solomark Optics | Adorama | Amazon.com |
focal length | 1200 millimeters | 1250 millimeters | 650 millimeters | 650 millimeters | 13.2 inches | 650 millimeters |
focus type | Manual Focus | Manual Focus | Manual Focus | Manual Focus | manual-and-auto | Manual Focus |
zoom ratio | 50 | 125 multiplier x | 130 | 10 multiplier x | — | 20 |
eye piece lens | 25mm eyepiece | 25mm and 10mm eyepieces | Plossl | Barlow | — | 20mm and 9mm eyepiece |
objective lens diameter | 203 millimeters | 5 inches | 150 millimeters | 130 millimeters | 6 inches | 130 millimeters |
exit pupil diameter | 8.13 millimeters | 1.02 millimeters | 23.06 millimeters | 2 millimeters | 2.73 inches | 5 millimeters |
telescope mount | Altazimuth Dobsonian base | Altazimuth Mount | Equatorial Mount | Equatorial Mount | GoTo Mount | Altazimuth Mount |
lens coating | XLT reflective coatings with silicon dioxide and tantalum pentoxide | StarBright XLT | Fully Coated | Fully Coated | StarBright XLT | Aluminum |
field of view | 248 degrees | 0.93 degrees | 1.04 degrees | 1.3 degrees | 1.02 degrees | 6.3 inches |
weight | 43.4 pounds | 14.6 pounds | — | — | 41.6 pounds | 11.4 pounds |
power source | Manual Operation Without External Power Source | Manual Operation Without External Power Source | Battery Powered | Adapter | AC & Battery | Battery Powered |
What's in the box
Product information
Product Dimensions | 49 x 18.5 x 19 inches |
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Item Weight | 43.4 pounds |
ASIN | B09TWWZ5DR |
Item model number | 22470 |
Batteries | 1 Lithium Metal batteries required. (included) |
Customer Reviews |
4.5 out of 5 stars |
Best Sellers Rank | #1,052 in Camera & Photo Products (See Top 100 in Camera & Photo Products) #19 in Telescope Reflectors |
Date First Available | March 4, 2022 |
Manufacturer | Celestron |
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Celestron – StarSense Explorer 8-inch Dobsonian Smartphone App-Enabled Telescope – Works with StarSense App to Help You Find Nebulae, Planets & More – 8” DOB Telescope – iPhone/Android Compatible
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the telescope easy to assemble, with clear instructions for the base and straightforward collimation process. The telescope is well-built and will last for years, with crisp and clear images of planets and star clusters, and one customer mentions seeing the Orion Nebula beautifully. The StarSense app receives positive feedback for its functionality, though some customers report issues with finding objects. The telescope's weight receives mixed reviews, with some finding it not too heavy while others consider it heavy.
AI-generated from the text of customer reviews
Customers find the telescope easy to assemble, particularly noting the clear instructions for setting up the base.
"...But overall, it comes together easily. And, if you do go for this - a laser collimator is super handy. And this thing was a breeze to collimate...." Read more
"...and poor night vision, the starsense is extremely handy and convenient...." Read more
"...The star sense app is also incredible and easy to use. It’s hard to believe how accurate it is...." Read more
"...The assembly of the mount is straightforward, and the mount is heavy but fairly easily carried by a reasonably healthy adult...." Read more
Customers find the telescope to be of good quality, describing it as a nice beginning scope that looks great.
"This is a FANTASTIC DOB telescope! I recommend this wholeheartedly and without reservation. This is a great DOB telescope...." Read more
"...The optics are superb; clouds in the atmosphere of Saturn are particularly impressive, as one example...." Read more
"Absolutely amazing telescope. Super simple too set up ~15-20 minutes and all tools and parts are included...." Read more
"this is a very fine product. extremely well built and made of quality materials...." Read more
Customers are satisfied with the telescope's image quality, reporting crisp and clear views of planets, star clusters, galaxies, and nebulae.
"...The StarSense app is amazing. It will not only point out MANY celestial objects, but it will provide written facts and oral descriptions on the more..." Read more
"...From 30x, to 200x, I can view a wide range of objects including planets, moon, sun (with a proper filter) and several deep space objects with an..." Read more
"...The eyepiece that came with it is crystal clear with minimal aberrations around the edge but because of the wide range of view it has not been a..." Read more
"...The app is really a joy to use, even allowing one to point to comets when they become visible, for example...." Read more
Customers praise the telescope's StarSense feature, with multiple customers highlighting its incredible app and educational value. One customer mentions how it revived their childhood love of astronomy, while another notes it provides information about celestial objects.
"...It helps you aim the scope while also providing information about the object you are viewing and the surrounding objects...." Read more
"...someone like me with astigmatism and poor night vision, the starsense is extremely handy and convenient...." Read more
"...The star sense app is also incredible and easy to use. It’s hard to believe how accurate it is...." Read more
"This is my first dobsonian and bought a 10”. I love the StarSense app to learn where objects are located...." Read more
Customers praise the telescope's construction, noting it is extremely well built and will last for years to come.
"...The DOB is sturdy. It is super solid and I am sure it will last for years to come. I had no problems with assembly...." Read more
"...I highly recommend this scope to anyone that wants a well built telescope, with a helping hand finding objects...." Read more
"...on how to assemble the base were clear and all of the parts were fabricated perfectly, no problems with fitting and resulted in a very strong and..." Read more
"...The stand is great and actually built to last a while. The software, not the greatest. However, software can be updated and upgraded...." Read more
Customers praise the telescope's performance, with one noting its strong sky-searching capabilities and another highlighting its wide field of view.
"...How great is that? It helps you aim the scope while also providing information about the object you are viewing and the surrounding objects...." Read more
"...There are a wide variety of magnifications with these 3 eyepieces and the barlow, for not a lot of money...." Read more
"...with minimal aberrations around the edge but because of the wide range of view it has not been a problem...." Read more
"...However, its strong ability to search the sky makes up for its size. I love it and would buy it again...." Read more
Customers have mixed experiences with the telescope's functionality, with some reporting that it works great and the StarSense app performs well, while others find that the assessment feature for finding objects doesn't work at all.
"...The starsense app works very well, and on clear dark nights, it is very accurate. With a full moon or cloudy skies, it can be a bit tricky...." Read more
"It works well, but it’s huge and not easily moved without assistance. Not exactly sure how to calibrate, although I’ve watched a video...." Read more
"...but that is not to suggest this thing is incomplete or lacking in quality. This is a tremendous scope worth every penny...." Read more
"...The Celestron 8" dobsonian was a breeze to set up. The starsense software worked great and it was pretty easy first time set up...." Read more
Customers have mixed opinions about the telescope's weight, with some finding it not too heavy, while others consider it a bit heavy.
"...It's not too heavy when carried in two pieces (roughly 25lbs/11kg for the tube, and the mount, each)...." Read more
"...is straightforward, and the mount is heavy but fairly easily carried by a reasonably healthy adult. The optical tube assembly is quite heavy...." Read more
"...Now I want a solar filter. I gave the scope 5 stars for portability even though it is a really big and fairly heavy but I knew that when..." Read more
"...Extremely portable with two simple knobs that twist off and allow you to carry the base and tube separately with ease...." Read more
Reviews with images

Killer Scope. Finds Everything, Even With Bad Eyesight.
Top reviews from the United States
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- Reviewed in the United States on January 13, 2025This is a FANTASTIC DOB telescope! I recommend this wholeheartedly and without reservation.
This is a great DOB telescope. I would like to tell you about it here.
First things first - the StarSense application is tremendously fun and educational for exploring the sky (as is SkySafari - consider this app if you have a non-StarSense scope). I bought one the smaller StarSense reflector scopes to test the app. After using it, I was sold on the platform and looked forward to getting the DOB. The StarSense app is amazing. It will not only point out MANY celestial objects, but it will provide written facts and oral descriptions on the more commonly observed objects. It is highly educational and entertaining. It also provides an interactive map of the sky as you gaze. Think of it this way - you have a mini planetarium on your scope. How great is that? It helps you aim the scope while also providing information about the object you are viewing and the surrounding objects. You can pick from a star map or enter the celestial object you want to view in a search bar. The app has an option to go red to preserve the acclimated eye. It was easy to align and work. The StarSense app is an utterly fantastic way to enhance the stargazing experience!! (Note: I had one phone work PERFECTLY with the app, and another phone did not work on the first night out. Later, I turned location services on and that fixed my problem - both phones worked well. Celestron keeps a list of StarSense confirmed compatible devices on their website if you want more info. It looks like the StarSense app is widely compatible. Frankly, I would buy a phone just to use this app).
The DOB is sturdy. It is super solid and I am sure it will last for years to come. I had no problems with assembly. If you go for the 12 inch (you Viking!), be sure to wear gloves or otherwise be very carefully when installing the primary mirror (from what I have read, the 8 and 10 inch come with the primary installed). But overall, it comes together easily. And, if you do go for this - a laser collimator is super handy. And this thing was a breeze to collimate. Images were crisp and clear!
The base is surprisingly smooth. I was concerned, given the weight of the 12, that it would be difficult to control and move. That was an unfounded concern. It moves smoothly, and with the nicely placed front handle, you can keep objects centered easily. Slewing is a pleasure on this DOB.
The scope is well balanced. But keep in mind, as you swap eyepieces and change accessories (starfinders, lasers, et al) the balance can change and become front heavy. This is no problem. There is a very well done tensioning knob that will keep you level and still. You can also purchase dobsonian weight magnets if you prefer to manually balance the scope. I do not think that is necessary right now - the tension system gets a chef's kiss from me.
Image quality is fantastic if you have the right eyepieces (or filters if you are in to that). Physics dictates this result, given the light gathering power of the primary. It is amazing to use a 12 inch aperture. To me, it is worth lugging the weight around. If you are unsure you can handle the bulk of the 12, there is nothing wrong with an 8 or 10! The app is still outstanding and there are plenty dark sky objects to see with the 8 and the 10. You cannot go wrong with any size, in my opinion. I would invite you to treat yourself to some 2 inch eyepieces. These DOBS all accommodate 2 inch eyepieces, and I would recommend the extra money for a nice set.
In sum, I highly recommend this DOB if you are in the market for such a telescope. And by using the phrase "in the market", I trust you are familiar with the size and weight of these scopes. But the size and weight are worth the price of admission. And please know, once they are set up they slew with ease. I could move the scope with a pinky and the scope rests firm when left to stand. These DOBs It is by far the best telescope I have ever owned.
I would recommend some accessories to enhance your stargazing. I recommend some 2 inch eyepieces (40-23mm), a DOB fan (which Celestron sells for cheap and easily inserts) which will help with great temperature differentials, a laser collimator, a mount to raise the red dot finder up off the scope for ease of use (so you do not have to crane your neck to use it), and a 90 degree starfinder (handy extra - one person can look through the DOB, and another can view the larger sky simultaneously). Just as a sprinter needs quality shoes, your DOB can use some quality accessories, but that is not to suggest this thing is incomplete or lacking in quality.
This is a tremendous scope worth every penny. Happy stargazing!
- Reviewed in the United States on June 15, 2023Style: StarSense Explorer 8"Verified PurchaseThe media could not be loaded.
5.0 out of 5 starsMost astronomers will recommend you start with a 6" or 8" dobsonian. I've had refractors before, but this is my first reflector. I cannot stress enough how enjoyable this scope is to use and view the heavens with. It comes with a decent Omni Plossl in 25mm focal length. I recommend purchasing two additional eyepieces, an 8-12mm, and a 36-40mm. I have a 12mm, a 40mm, and 2x barlow in Omni Plossl fashion to match the 25mm. There are a wide variety of magnifications with these 3 eyepieces and the barlow, for not a lot of money. From 30x, to 200x, I can view a wide range of objects including planets, moon, sun (with a proper filter) and several deep space objects with an apparent magnitude of 10 or lower, quite clearly. Objects higher than 10 will be difficult if you live with city light pollution, but that still leaves thousands of viewable objects. It's not too heavy when carried in two pieces (roughly 25lbs/11kg for the tube, and the mount, each). The starsense app works very well, and on clear dark nights, it is very accurate. With a full moon or cloudy skies, it can be a bit tricky. I highly recommend this scope to anyone that wants a well built telescope, with a helping hand finding objects. It includes a red dot finder if you want to find objects the old fashioned way as well. But for someone like me with astigmatism and poor night vision, the starsense is extremely handy and convenient. Seeing the 8" mirror in the bottom of the tube is a sight to see, I'll include pictures of the scope, as well as several photos I have taken of the moon and some planets. Yes, you can actually do minor planetary and lunar imaging with this scope, even with your phone! In fact, every photo I've included in this review was taken with my Samsung S23, the Nexyz phone mount, and the various eyepieces I mentioned earlier. Take a few videos of the object, turn the videos into an .ser file with PIPP (free software) and stack the frames in Autostakkert (also free) to reveal a stacked image ready for sharpening and color enhancement. I hope this review will help people decide if this scope was right for them, because it was certainly right for me!Killer Scope. Finds Everything, Even With Bad Eyesight.
Reviewed in the United States on June 15, 2023
Images in this review
- Reviewed in the United States on March 4, 2025Style: StarSense Explorer 10"Verified PurchaseThis telescope is awesome! It has extremely sharp and clear images of planets and star clusters. I live in a heavily light polluted area and I can still see galaxies and nebula. The star sense app is also incredible and easy to use. It’s hard to believe how accurate it is. It does lose its location when clouds pass by and if I get close to the horizon where the glow from the streetlights is pretty bright. The eyepiece that came with it is crystal clear with minimal aberrations around the edge but because of the wide range of view it has not been a problem. Overall I’m really impressed and would suggest this scope to anyone that is interested
Top reviews from other countries
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CelderReviewed in Mexico on December 21, 2023
5.0 out of 5 stars Impresionante aparato.
Style: StarSense Explorer 10"Verified PurchaseEs un telescopio tipo Dobson; y es muy fácil de armar porque el instructivo es detallado e intuitivo. El hecho que traiga para instalar celular y usar una aplicación de sky map para visar objetos celestes, lo hace muy propio para personas principiantes en Astronomía.
El aparato es muy bonito e imponente. Tks.