The Sky Watcher 10 Inch Dobsonian Telescope S11720 is a bigger and more friendlier telescope than its 8 inch Dobsonian S11700 counterpart. This Sky Watcher telescope can be a very pleasant telescope to own, which will provide a lifetime of continuing exploration of the outer galaxy. Many amateurs will become satisfied with the 10" Dobsonian's large aperture capabilities along with its revolutionary truss-support concept which allows the optical tube's front and back cells to collapse together, while aligning on the truss support rods, and can be locked down for a more easier and secure way to transport the telescope. This one piece , low hassle OTA design is mechanically simple and results in a large aperture telescope that can be handled with ease and transported by just one individual. This innovation helps Sky Watcher users take a huge load off their shoulders when transporting.

With this large aperture telescope by Sky Watcher the observer has amazing light gathering power for observing noticeable deep-space objects such as diffuse emission nebulae in the summer sky like the Lagoon (M8), Trifid (M20), and Swan (M17); the huge array of star clusters M13 and M92 in Constellation Hercules; the winter sky's Great Orion Nebula (M42) in constellation Orion, and the enormous Andromeda galaxy (M31) in constellation Andromeda.

It is without question that the Sky-Watcher 10 Inch Dobsonian Telescope S11720 is more visually impressive when compared to the 8 Inch Dobsonian Telescope SS11700. The Sky-Watchers's compact, collapsible optical tube design makes the decision to step in aperture to a 10" easier.

Observing with a Dobsonian 8 inch Telescope has been compared to shooting ducks in a gallery because it is so easy to find a target for observation. Just swing the telescope by Sky watcher to the sky, and scan the proximity. An 8x50mm Right Angle optical viewfinder provides both magnification and light-gathering to help narrow your search for the stars. The standard equipment backlash-free 2 Inch Crayford Focuser provides ultra smooth focusing adjustments. Multi-coated, 4 element eyepieces (25mm and 10mm) provide a spacious 52? field of view.

Shipping Weight:		79 lbs.
Optical Design:		Newtonian (Parabolic)
Lens Material:		Grade A annealed Glass
Aperture (Diameter):		254mm
Focal Length:		1200mm
F-Ratio:		F/5
Secondary Mirror Diameter:		58mm
Highest Practical Power:		508x
Faintest Stellar Magnitude:		14.7
Resolving Power:		.59 arc sec
Finderscope:		8x50 RA Viewfinder
Focuser Diameter:		2", 1.25" adapter
Diagonal:		Internal
Eyepiece(s):		1.25", 25mm, and 10mm
Mount Type:		Dobsonian
Slow Motion Control:		Manual w/ Tension Adjust.
Counterweight(s):		N/A
Piggyback Bracket:		N/A
Accessory Tray:		Standard
Ground Board Weight(s):		12.5 kgs.
Motor Drive:		N/A
Go-To:		N/A
Tube Weight:		33 lbs.

• Provides more capability and value in a large aperture telescope
• Revolutionary truss-support concept allows the optical tube's front and back cells to collapse together for easier and more secure transportation
• Serious amateur astronomer's aperture of choice
• Rigid construction design with outstanding stability
• An 8x50mm right angle optical viewfinder provides both magnification and light gathering to help narrow a search for stars
• Uses a high-performance Teflon bearing system in both axes combined with tension adjustment in altitude to facilitate setting the appropriate amount of friction
• At low power, deep-space objects drift through the field of the 10 inch Dobsonian telescope, so constant mechanical adjustment of the telescope's orientation isn't needed to keep objects in the field of view

• SkyWatcher 10 Inch Dobsonian Telescope S11720