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Item 8267
Product Name Orion 8" f/8 Ritchey-Chretien Astrograph Telescope
Best for imaging Deep Sky
User level  Advenced
Optical design  Ritchey-Chretien
Optical diameter  200mm
Focal length  1600mm
Focal ratio  f/8
Optics Type Hyperbolic
Optical quality Diffraction limited
Resolving power  0.58arc*sec
Lowest useful magnification 29x
Highest useful magnification  236x
Highest theoretical magnification 400x
Limiting stellar magnitude 14,2
Finder Scope None
Focuser 2" dual-speed  linear bearing Crayford
Secondary mirror obstruction 95mm
Secondary mirror obstruction by diameter 47%
Secondary mirror obstruction by area 22%
Mount Type Optical Tube without Mount
Astro-imaging capability Lunar & planetary& Long exposure
Tube Material Steel
Lenght of optical tube 22 in.
Weight of optical tube 18.5 lbs.
Additional included accessories Separate drawtube tension adjustment & lock knobs, Losmandy-style dovetail mounting bar on underside
Other features Vixen-Style dovetail mounting bar on top, Two dovetail finder scope bases for finder scopes, 1" & 2" Extension tubes
Warranty One year

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Orion 8" f/8 Ritchey-Chretien Astrograph Telescope

  • $1,199.00
  • Ex Tax: $1,199.00

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Tags: Ritchey-Chretien, Astrograph, OTA