Description
conveniently mounted on the diagonal mirror cage makes it easy to control the scope’ motion in any direction. The optical tube starts moving at a gentle touch – smoothly and with no fuss. Center on an object and the scope settles down immediately, with no shudder or vibration to mar your viewing experience. The knobs also act as an aid in installing the optical tube into the base.
Carry handles/altitude tension control/eyepiece tray: The handles in the sides of the rocker box incorporate a tension control in altitude that lets you compensate for eyepieces of markedly differing weights. An eyepiece tray capable of holding one 2″ and three 1.25″ eyepieces attaches to the front of the rocker box above the supplied centrally-mounted carrying handle.
Altazimuth base dimensions: 20″ in diameter by 29″ high.
What can you see through the 8″ Sky-Watcher telescoping truss-tube Dob?
Outside the solar system, the night sky is filled with fascinating objects within the reach of the 8″ Sky-Watcher Dob. In the constellation Sagittarius lie several of the sky’s most prominent emission nebulas. The Lagoon Nebula (M8) is a rich aggregation of dust and gasses illuminated by its youthful central stars. This is an area of star formation, the universe giving birth. Located nearby is the smaller, but very beautiful, Trifid Nebula (M20). The magnificent Swan Nebula (M17) is also located in Sagittarius. The sky’s most awesome globular star cluster, M13, a bee-hive of thousands of stars swarming about a central core, is located in the constellation Hercules. This is the brightest object of its kind and is always a treat to view. Globular clusters are no longer being formed in the Milky Way, so in M13 you are observing fossil light, a glimpse back in time. Under dark skies, the Orion Nebula (M42) becomes a glowing complex of filaments, filling the wide 1.08 field of the standard eyepiece. Messier, NGC, and IC objects show detail and structure never visible in the smaller telescopes that are more common in this price range.
As with any serious telescope, the performance of the 8″ Sky-Watcher telescoping truss-tube Dob on faint objects will be improved by a dark sky observing site. Heavily light-polluted city and suburban sites are not the best for observing very faint objects with any 8″ scope.
Within the solar system, given suitably good seeing, Encke’s Division and other minor features in Saturn’s rings occasionally become visible in the 8″ telescoping truss-tube, as does Saturn’s faint crpe ring. Low contrast banding and details in Saturn’s atmosphere begin to make themselves apparent, as well. Lunar features less than one mile across become visible, while Jupiter’s four Galilean moons start to show as tiny discs.
Taking advantage of the weight-saving sophistication of its telescoping truss-tube design, the 49.5 pound Sky-Watcher 8″ Dobsonian makes it practical for one individual on his or her own to explore the heavens with a truly big scope, whether from a back yard or a distant dark sky observing site. This Sky-Watcher 8″ telescoping truss-tube Dobsonian reflector will keep you happily observing for many years to come.
Tech Details:
| Aperture | 8″ |
|---|---|
| Focal Length | 1200mm |
| Focal Ratio | f/6 |
| Heaviest Single Component | 26 lbs. |
| Highest Useful Magnification | 300x |
| Weight | 50.2 lbs. |
| Resolution | 0.57 arc seconds |
| Supplied Eyepiece | 25 mm and 10 mm 1.25 Plssl Eyepieces |
| Telescope Type | Reflector |
| View Finder | 8x50mm RA |
| Visual Limiting Magnitude | 14 |
| Warranty | 2 years |
Supplied Accessories:
- Telescoping no-tool assembly truss tube design
- Rolled aluminum/die-cast secondary mirror cage and primary mirror tub
- Navigation knob
- Laminated altazimuth mount with Teflon bearing surfaces and altitude tension control
- 4-vane spring steel diagonal mirror support with adjustable mirror holder
- Adjustable primary mirror flotation system
- Diffraction-limited Grade A optical glass mirrors
- Protective primary mirror cover
- 2″ Crayford-style machined aluminum focuser with 1.25″ eyepiece adapter
- 25mm (48x) and 10mm (120x) 1.25″ Plssl eyepieces
- 8x50mm right angle finderscope.






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