Skyliner 200 (2" VERSION) 150mm (6") f/1200 Dobsonian
Telescope
These instruments offer an incredible aperture-to-price ratio.
The Dobsonian mount, popularized by John Dobson in the late 1970's, is a
very simple but effective method of mounting a Newtonian Reflector,
based on the alt-azimuth principle.
Fast and easy to set up, the Dobsonian mount consists of a box-type
mounting which allows the telescope to pivot in altitude, while the box
itself is rotated on a base in azimuth. The secret of the design is to
correctly balance the optical tube and to use frictional materials which
allow it to move easily when nudged but to stay in position when not.
The mount is designed to be driven by hand as opposed to motor driven or
via slow-motion controls, and as such make them more suitable for use at
low-to-medium magnifications and for deep-sky observations.
An optical telescope gathers and focuses light mainly from the visible part of the Electromagnetic spectrum (although some work in the infrared and ultraviolet). Optical telescopes increase the apparent angular size of distant objects, as well as their apparent brightness. Telescopes work by employing one or more curved optical elements - usually made from glass - lenses or mirrors - to gather light or other electromagnetic radiation and bring that light or radiation to a focus, where the image can be observed, photographed, studied, or sent to a computer. Optical telescopes are used for astronomy and in many non-astronomical instruments, including: theodolites (including transits), spotting scopes, monoculars, binoculars, camera lenses, and spyglasses. There are three main types:
The refracting telescope which uses solely an arrangement of lenses (excluding star diagonals).
The reflecting telescope which uses solely an arrangement of mirrors (excluding eyepieces).
The catadioptric telescope which uses a combination of mirrors and lenses, and usually have a glass corrector plate at the front.
| Standard
Specification: |
| Magnification
Range |
x36,
x50, x100, x200 |
| Diameter
of Primary Mirror |
200mm |
| Telescope
Focal Length |
1000mm
(f/5) |
| Eyepieces
Supplied (1.25") |
10mm
& 20mm Super-MA |
| Eyepiece
Supplied (2"/50.8mm) |
28mm
Kellner |
| Diffraction
Limited Optics |
| Direct
SLR Camera Connection |
| x2
Deluxe Barlow Lens (With Camera Adaptor) |
| 9x50
Finderscope |
| Dual-Fit
1.25"/2" Focuser |
| Parabolic
Primary Mirror |
| Wooden
Alt-Azimuth Mount with Accessory Tray. |
|
Product Code:522-2
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Astronomical
Telescopes and Accessories