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Sky Watcher Sky-Watcher Flextube 300 SynScan Dobsonian 12-inch Collapsible Computerized GoTo Large Aperture Telescope (S11820)

  • Based on 46 reviews
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Availability: 13 left in stock
Fulfilled by Amazon

Arrives Thursday, Nov 28
Order within 8 hours and 30 minutes
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Style: Collapsible 12" Dobsonian


Features

  • LARGE APERTURE: Get a bright, bold viewing experience at a fraction of the cost of other optical designs.
  • INNOVATIVE COLLAPSIBLE DESIGN: Unique strut design allows for optical tube to collapse for ease of portability while keeping collimation.
  • BUILT-IN WIFI: Control your telescope using a smartphone or tablet with Sky-Watchers proprietary built-in wifi signal.
  • ALL METAL GEARING: Using all-metal gearing on a pair of DC servo motors, the SynScan Dobsonian combines the precise automated tracking of a computerized GoTo telescope with the bright large-aperture viewing of a Dobsonian.
  • 94% REFLECTIVE MIRRORS: Fully multi-coated borosilicate primary and secondary mirrors deliver exceptional views.
  • 42,000 OBJECT DATABASE: SynScan hand controller with 42,000+ object database will keep even the most experienced astronomer busy for countless observing nights.
  • COMES COMPLETE: All accessories such as, 2-inch Crayford-style focuser with 1 1/4-inch adapter, two super wide-angle eyepieces (25mm and 10mm), and 9x50 straight-through finder scope are included with purchase.
  • STURDY AND LIGHTWEIGHT DESIGN: When fully assembled, the Dobsonian weighs only 99.2 pounds fully assembled (46 pound tube, 53 pound base)

Description

Sky-Watcher’s GoTo Dobsonian epitomizes Sky-Watcher’s dedication to innovative ideas, combining our exclusive collapsible optical tube design with the convenience of a computerized GoTo mount. The SynScan hand controller allows users to point the telescope at specific objects, or tour the night sky with the touch of a button! Most astronomers crave the large aperture of a Dobsonian telescope, yet the lack of computerized GoTo features can be discouraging for some users. Sky-Watcher tackles this by adding motors to a traditional Dobsonian base, giving astronomers the benefits of a computerized GoTo system. Sky-Watcher’s signature SynScan hand controller uses two easy alignment methods, ‘Bright Star Alignment’ or ‘Two-Star Alignment’ for quick and easy setup. Once aligned, the SynScan hand controller can point to over 42,000 objects, including a full catalog of Messier, NGC and IC objects, providing you with a lifetime of celestial observing! While Dobsonian telescopes have a reputation for large apertures at a low cost, they often come at the expense of portability. The GoTo Dobsonian fixes this problem using our exclusive collapsible optical tube, featuring a strut system with three 1” steel poles and chrome locking screws. The strut system uses preset indentations which place the optics in the same position time after time, maintaining collimation. Unlike other Dobsonians using truss-tube systems, Sky-Watcher’s GoTo Dobsonian optical tube does not need to be disassembled before transporting from one location to another. With the ability to collapse up to 36%, these optical tubes can be easily transported in the backseat of most vehicles. At the heart of every Sky-Watcher telescope are professional- grade optics. The GoTo Dobsonian is no exception, using borosilicate mirrors coated in quartz, titanium and silicon dioxide. This yields an amazing 94% reflectivity, vivid contrast and minimal vignetting to deliver an exceptional viewing experience. Unlike other manufacturers, Sky-Watcher has a policy of providing you with all necessary accessories to get started. 8”, 10” and 12” GoTo Dobsonians include a 2” Crayford-style focuser, with a 1.25” adapter and two 1.25” eyepieces (10mm and 25mm). Whether this is your first telescope or not, there’s enough accessories for every kind of astronomer.

Brand: Sky Watcher


Model Name: Sky-Watcher GoTo Collapsible Dobsonian 12" (305 mm)


Optical Tube Length: 70 Millimeters


Eye Piece Lens Description: Plossl


Objective Lens Diameter: 12 Inches


Telescope Mount Description: Altazimuth Mount


Product Dimensions: 42"D x 28"W x 21"H


Focus Type: Auto Focus


Power Source: Adapter


Finderscope: Reflex


UPC: 050234118200


Global Trade Identification Number: 00


Manufacturer: Sky-Watcher


Brand Name: Sky Watcher


Model Name: Sky-Watcher GoTo Collapsible Dobsonian 12" (305 mm)


Coating: Fully multi-coated pyrex mirrors


Power Source: Adapter


Finderscope: Reflex


Compatible Devices: Tablet, Smartphone


Eye Piece Lens Description: Plossl


Mount: Altazimuth Mount


Focus Type: Auto Focus


Item Weight: 13.7 Pounds


Objective Lens Diameter: 12 Inches


Item Dimensions D x W x H: 42"D x 28"W x 21"H


Optical-Tube Length: 70 Millimeters


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • What is not to love (first review)
Style: Collapsible 12" Dobsonian
Yes, it is big, yes it is awesome. Now for all you fans, something I did not know. Upon opening the box, the first piece of paper slipped out and indicated , "by the way your Sky-Watcher has built in Wi-Fi." I did not know they had started doing this. I almost bought the Wi-Fi dongle with the scope. I did not have a lot of time with the scope before skies stopped cooperating. I never even used the hand control, just my phone. Fantastic. The pic of the Orion Nebula was just with me trying to line up the phone with the eyepiece, we know that isn't easy, but time was an issue. In any case, the thing kicks butt and has its own Wi-Fi, not networkable, but just connect with phone. I love you Sky-watcher, you're my only scope. Edit. Many folks ask about tracking for astrophotography. Added last pic of Orion with my Pixel with 1:20 minutes exposure. So yes you can do some exposure, but probably not more than 30 sec. Re-edit. Has issues with the drive. Skywatcher support was quick and helpful and sent new base. Very hard to find that type of customer support. Good job! ... show more
Reviewed in the United States on January 15, 2020 by Jason Jason

  • The optical tube was not delivered
Style: Collapsible 12" Dobsonian
I read reviews stating that some buyers only received the base of the telescope, but I figured those were flukes. Nope. My package arrived without an optical tube. Just a disassembled base... DO NOT BUY.
Reviewed in the United States on May 4, 2024 by Christine

  • Sky Watcher Flextube 8" 200P SynScan GoTo Collapsible Dobsonian Telescope
Style: Collapsible 8" Dobsonian
This is my first ever Telescope and I went up and back between this one and the Celestron StarSense Explorer 8 and I am sure happy that I made the right choice! This Telescope is simply beautiful! It took me 45 minutes to assemble and it was easy, I used the tools they sent. I don’t know why people are giving these bad reviews? Mine did t have a scratch on it, both boxes came with all the parts and the build quality is amazing! I will post an update in a couple of months. The only downside to this package is they send you 2 tiny wood screws for the controller holder and they do not work. I want two little bolts with nuts and washers and will stop at ace tomorrow. It is a quick easy fix! Otherwise I will definitely buy from Skywatcher again! And I paid 100% for this scope with my own money! If you’re thinking about a sky watcher, don’t listen to these bad reviews because mine is awesome. Go ahead and pull the trigger. You won’t be sorry.! Beautiful Telescope! ... show more
Reviewed in the United States on September 16, 2024 by Keona Ann Fonteyn Keona Ann Fonteyn

  • Great scope, just technical issues with features.
Style: Collapsible 8" Dobsonian
The scope is amazing. For nearby planets you can see the bands of Jupiter pretty well and make the main ring features of Saturn out pretty well. To be fair, your naked eye view is going have the planets look a bit smaller than a pea. You will see Jupiter and a half dozen of its moons in your total view - so that's neat. Deep space options are great views to capture on this scope. You aren't going to see colors and such, but you will see great clusters. If you want the coloring and all, you'll need to also invest in photographic equipment for long exposures. Now the downside. The motors had issues. This of course is a big deal since you need them to move the scope around. They worked great for a first couple of days and then would die after moving for about 3 seconds. Nothing would get them moving against except a hard reboot. The other big issue I had was with wi-fi connectivity just dropping constantly. This was even with having one of my access points with in 20 feet and no obstructions. Needless to say tracking goes crazy or just stops working. Alignment with the scope is okay - as long as the App works or you can see and properly identify some of the brighter stars. Unfortunately planets cannot be used with the on board alignment - that only happens with the App. End of the day the technical issues with the scope and unable to resolve them caused me to return it. ... show more
Reviewed in the United States on September 9, 2020 by Flayre

  • Great telescope
Style: Collapsible 10" Dobsonian
I've been looking for a larger telescope for years. And now in a position to get one I chose this Sky watcher. Had a 4-in Bushnell for ever, and was not very happy with the quality. At some point I may splurge and go all out and get the 16-in version. But for now this is just fine for backyard viewing. I will caution that no power supply came with us. You will need to supply a plug and Supply or make some type of battery supply plug this into. ... show more
Reviewed in the United States on May 13, 2024 by B. Mayo

  • Scam
Style: Collapsible 12" Dobsonian
It would of been nice to deliver the base with it. Now I'm out $2500.
Reviewed in the United States on October 5, 2023 by Wolf

  • 10" of night time fun!
Style: Collapsible 10" Dobsonian
Great telescope, easy to use. Really delivers that wow factor you're looking for. Wifi included on motorized version. One guy on here mentioned having to collimate every time, but in my experience if I'm gentle moving the scope outside and setting it up, then the collimation holds fine from the last time I observed. Maybe he just needs to lock down the screws a little tighter after adjusting his mirrors. Can't wait to buy some nice Televue/Explore Scientific eyepieces (update: bought a Explore Scientific 120° 9mm, omg this eyepiece is awesome, worth every penny!) to really see the full potential of this scope. Highly recommend for anyone (beginner or pro) interested in astronomy. My pics were taken with just a cell phone, but a nice DSLR camera is on the horizon. Buy this scope, you won't be disappointed! ... show more
Reviewed in the United States on September 24, 2019 by Paul Mellor Paul Mellor

  • Multiple defects.
Style: Collapsible 10" Dobsonian
As a Newtonian telescope - it's a good value for the money. My issues were a manufacturing defect that made it very hard to turn in azmuth, a nonworking 'down' key' on the controller and getting an error message every time I tried to align it. Talking to tech support did not resolve any of these problems. And a word of warning - you need to be good at collimating because you will be re-collimating every time you use it. The Flextube does not return to the exact same position after you collapse it and extend it again. When manually pointing, the views I was getting were outstanding. If the thing simply worked properly, I would have loved it. ... show more
Reviewed in the United States on July 29, 2023 by Colin

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