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Skywatcher Skyliner 300P Pyrex SynScan 300mm 12 "GoTo Dobson telescope

The Skyliner 300mm (12") f/4.9 Dobsonian combines the advantages of a Dobsonian telescope with the benefits of a GoTo system.
305mm (12") f/1500 collapsible, computer-controlled GoTo parabolic Dobsonian with WiFi (featuring low-expansion borosilicate glass).
Skywatcher 300P Synscan

The new Skyliner Dobsons with GoTo are a current highlight of the development of Dobson telescopes. They combine the advantages of the Dobson telescope (a large opening with a light construction at an affordable price) with the convenient handling of a GoTo mount. These telescopes are by far the most convenient way to combine a large telescopic opening with computer control through a hand box.

The "Flex-Tube" system used by Skywatcher, proven in standard and autotracking dobsons, is also used here. The transportability and fast construction of this robust telescope is easier and better than any other known device. The adjustment is retained, an exemplary feature of the new Skywatcher Dobson.

The new Skyliner GoTo Dobsons represent a current pinnacle in the evolution of Dobson telescopes. They combine the inherent advantages of a Dobson design—large aperture and easy setup at an affordable price—with the convenient operation of a GoTo mount. These telescopes offer, by far, the most cost-effective way to pair a large aperture with a computer-controlled, hand-operated tracking system.

The "Flex-Tube" design, already proven in Skywatcher’s standard and Auto-Tracking Dobson models, is also featured here. The portability and rapid setup of this robust telescope are superior to any other comparable instrument on the market. Furthermore, the optical alignment (collimation) is maintained—an exemplary feature of these new Skywatcher Dobsons. The ultimate 12" Dobsonian! A computer-controlled GoTo Dobsonian featuring built-in WiFi. It boasts superb 305mm Sky-Watcher parabolic optics, crafted from low-expansion borosilicate glass, which ensures faster cool-down times and excellent thermodynamic optical properties. It also features a convenient, collapsible FlexTube truss-tube design.

Included equipment: A precision 2" Crayford focuser with 1.25" and 2" eyepiece adapters, a 9x50 straight-through finderscope, 12.5mm and 20mm 70° super-wide-angle eyepieces, a 1.25" adapter with a brass compression ring (to prevent damage to your eyepieces), and a universal smartphone camera adapter for capturing your first images of celestial objects.

The Skyliner 300P FlexTube SynScan Dobsonian is supported by a fully motorized, computer-controlled base. Following a simple alignment procedure, the system can automatically slew to over 42,900 night-sky objects via the included hand controller. Furthermore, the base can be controlled wirelessly via WiFi using the SynScan app on a smartphone or tablet. The base incorporates patented "Freedom-Find" dual encoders, which allow the mount to be moved manually without losing its positional data. This enables you to quickly slew the telescope by hand to an object on the other side of the sky, then let the computer handle the precise final alignment. The telescope tube can be quickly and easily detached from the base, making it much more convenient to transport.

In visual astronomy, a large, light-gathering Dobsonian is truly hard to beat. The only drawback is that as they get larger, they become increasingly difficult to transport and store. Traditional truss-tube designs require... No more time-consuming setup procedures. Sky-Watcher’s clever, patented, collapsible FlexTube™ truss-tube design is a true game-changer, as it requires no assembly. The optical tube can simply be extended, locking into place on three sturdy struts in a matter of seconds. Once extended, there is no lateral movement or flex, meaning that re-collimation is not necessary. A second locking position is provided for use with a binoviewer. When collapsed, the tube is easy to transport and can be stored upright. Furthermore, the optical tube can be easily detached from the rocker box by removing the side handles, making transport even more convenient.

The Sky-Watcher Skyliner 300P Flextube SynScan Dobson, with its impressive parabolic optics, is an excellent all-rounder, offering truly stunning views of the Moon and planets, as well as deep-sky objects such as galaxies, nebulae, and star clusters. The heart of any Dobsonian telescope is the quality of its mirror optics; the precision of the figuring, the material used, and the coatings all play a significant role in the telescope's performance. Sky-Watcher is well-renowned for its expertise in manufacturing high-quality telescope mirrors—a reputation built and proven over decades. Parabolic mirrors feature a complex surface and must therefore be crafted with great care. A perfectly shaped parabolic primary mirror eliminates spherical aberration, ensuring that all light rays converge precisely at the focal point. Sky-Watcher’s diffraction-limited parabolic primary mirrors produce sharp, high-contrast images rich in detail.

The primary and secondary mirrors of the Skyliner 300P Flextube SynScan Dobson are crafted from a special low-expansion borosilicate glass—similar to the well-known Pyrex—which exhibits significantly less thermal expansion than standard glass types like BK7 or ordinary window glass. In practical terms, this means shorter cool-down times to reach thermal stability, without the need for a cooling fan. Furthermore, the mirror maintains its shape more effectively during the cooling process, preventing image distortion and allowing observations to begin sooner.

Both the primary and secondary mirrors feature Sky-Watcher’s high-quality RAQ™ (Radiant Aluminium Quartz) coating. This multi-layer finish consists of aluminum, a dielectric layer of tantalum pentoxide for enhanced reflectivity and protection, and a final layer of silicon dioxide. The result is a brilliant, durable coating with 94% reflectivity that is designed to last for many years. The secondary mirror is held in place by four specially designed, highly stable struts that are only 0.5 mm thick. These minimize obstruction in the optical path and reduce diffraction spikes around stars to an absolute minimum.

Skyliner Classic Dobsons feature a beautiful finish in Sky-Watcher’s signature "Black Diamond" metallic paint, complemented by contrasting white surfaces—a design choice that serves more than just an aesthetic purpose. The white finish makes the telescope easier to see at night, helping to prevent anyone from accidentally bumping into it. Features:

Magnifications (with included eyepieces): 75x & 120x
Highest useful magnification: 610x
Primary mirror diameter: 305mm
Telescope focal length: 1500mm (f/4.92)
Eyepieces (1.25"): 12.5mm & 20mm, 70° super-wide-angle
1.25" eyepiece adapter with brass compression ring
2" precision Crayford focuser with 1.25" and 2" eyepiece adapters
Parabolic primary mirror & secondary mirror (made of low-expansion borosilicate glass)
Radiant™ Aluminum Quartz (RAQ™) mirror coating with up to 94% reflectivity, offering optimal durability and long-term stability
0.5mm secondary mirror vane (spider)
9x50 straight-through finderscope
Universal smartphone adapter (for smartphones with a width of 54–90mm)
3-point locking system
Alt-azimuth mount with accessory tray, built-in heavy-duty servo motors, and integrated WiFi
SynScan AZ computerized hand controller
Database of 42,900+ objects, including Messier, NGC, and IC catalogs
Control: Via WiFi using the free SynScan app for iOS and Android mobile devices, or via the SynScan hand controller
SynScan app database: Over 10,000 objects in total. Deep-sky objects: 10,759 (including Messier, NGC, IC, and Caldwell catalogs, plus named DSOs); 305 named stars; 55 double stars; 7 solar system objects (planets, Sun, Moon). (Unlimited objects when used with third-party planetarium software.) SynScan App alignment methods: 1-star alignment, 3-star alignment, brightest-star alignment, North-Level alignment
Additional SynScan App features: "Best objects of the night" sky tour, "Point & Go" via mobile device, celestial object identification, remote control over the internet, user-defined objects, Pointing Accuracy Enhancement (PAE)
Quiet operation
Power supply: 12V DC (center-positive)
Base diameter: 632 mm
OTA weight: 21 kg
Rocker box weight: 24 kg
OTA length (extended): 1400 mm
OTA length (retracted): 920 mm
44% greater light-gathering capacity compared to a 250 mm telescope

The 2 "eyepiece extractor:

The Dobson is equipped with a smooth and precise 2 "Crayford eyepiece extractor with a 1.25" reduction. This makes it possible to use high-performance 2 "eyepieces, a bright image and a clear overview. All 1.25" eyepieces can of course also be used.
Since the extension is ball-bearing, accurate and easy adjustment is ensured with heavy accessories.

12 "opening is an enormous size with a Dobson, which still remains transportable!
With this mirror diameter, you see the structure of mists and galaxies, details are resolved. The finest details in mists and galaxies come to light. Border stars of star clusters are not hidden from you.
Details in abundance with the moon and planets attract you for a long time, this abundance of picture information no longer ceases. The excellent optics and its enormous image brightness make every observation a special pleasure.


The benefits of the Skywatcher 12 "GoTo Dobsons:

- limited 12 "parabolic mirror for sharp and high-contrast pictures
- fast construction and uncomplicated transport thanks to the proven Flex-Tube design
- easy calibration on two stars
- built-in encoders allow manual adjustment without losing the orientation of the computer
- manual adjustment makes silent operation possible
- 42,900 saved objects - any further via the input of coordinates
- Photography of moon / planets possible

Skywatcher 300P Synscan Transprot
So compact is the 300mm Dobson

The technical data at a glance:

- main mirror ... parabolic - 300mm diameter (12 ") / 1500mm focal length
- 2 "Crayford eyepiece eyepiece with reduction also for 1.25" eyepieces
- 9x50 viewfinder
- T2 connection for SLR cameras - for moon / planetary photography
- Alt Azimutale GoTo Mount (Rockerbox) with powerful and quiet servo motors
- Encoder, so that the computer does not loose the orientation even with manual adjustment
- SynScan AZ computer control
- 42,900 objects are stored
- Easy calibration at 2 stars
- 12V power supply with cigarette lighter plug

Scope of delivery:

305mm Flextube Newtonian telescope tube
Dobson mount with accessory tray, built-in heavy-duty servo motors, and integrated WiFi
2” Crayford focuser with 1.25” adapter and camera connection
9x50 finderscope
Eyepieces: 10mm & 25mm
SynScan V.6 hand controller
Parabolic primary mirror and secondary mirror coated with Radiant™ Aluminum Quartz (RAQ™) – offering up to 94% reflectivity, excellent durability, and long-term stability



 
Benefit from our experience as a telescope specialist:
 
For more than 30 years we have been passionate about astronomy
Every day we check, optimize & adjust telescopes, mounts & accessories, before handing over to the customer
In this way we know the advantages and disadvantages of the individual products
We sell & recommend only products we use ourselves of which we are convinced
For a comprehensive, brand-independent consultation we take a lot of time for you
As the first astronomy specialist, we offer our customers real-time video consulting,
For to see is to understand
Even after the purchase we are there for you & are still at the side for setup and operation
In case of questions or new entry, we offer instruction & In special cases also on-site service in the Munich area