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ORION 6" F4 ASTROGRAPH NEWTON

Artikelnummer 10269
ORION® USA
493,00
479,00
(395,87 excl. btw)
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ORION 6" F/4 NEWTONIAN ASTROGRAPH REFLECTOR

  • Fast 6"-aperture reflector lets you take short exposures with bright, high-resolution results
  • Precise 2" dual-speed (10:1) linear-bearing Crayford focuser lies 7" back in the optical tube to block stray light and boost contrast
  • Orion-exclusive steel reinforcement plate under focuser eliminates flexure with heavy imaging gear attached
  • Compact 22.5" length and light 12.7 lb. assembled weight doesn't require an enormous mount
  • Includes two heavy-duty hinged tube rings, 8x50 finder scope, dovetail mounting bar, and more

Our 6" aperture imaging reflector is loaded with useful features to help you capture high-resolution images of the night sky. With very fast f/4 optics and 94% reflectivity coatings, the Orion 6" Newtonian Astrograph will help you acquire outstanding high-resolution images of deep-sky objects with delightfully short exposure times so you can get great results in less time. What's more, this compact imaging specialist is conveniently lightweight at just 12.7 lbs., so it doesn't require a huge mount to support it.

SPECIFICATIONS:

  • Optical design    Reflector
  • Optical diameter    150mm
  • Focal length    610mm
  • Focal ratio    f/4.1
  • Optics type    Parabolic
  • Glass material    Crown/Flint
  • Resolving power    0.77arc*sec
  • Lowest useful magnification    21x
  • Highest useful magnification    177x
  • Highest theoretical magnification 300x
  • Limiting stellar magnitude    13.5
  • Optical quality    Diffraction limited
  • Finder scope 8x50
  • Focuser 2" dual-speed linear bearing Crayford
  • Secondary mirror obstruction 63mm
  • Secondary mirror obstruction by diameter 42%
  • Secondary mirror obstruction by area 18%
  • Mirror coatings/over-coatings Aluminum & Silicon Dioxide
  • Mount type Optical Tube without Mount
  • Astro-imaging capability
  • Lunar, planetary & long exposure
  • Tube material Steel
  • Length of optical tube 22.5 in.
  • Weight, optical tube 12.7 lbs.
  • Additional included accessories Pair of hinged tube rings, 2 inch extension tube, 8 x 50 finder, dust cover
  • Other features Steel reinforcing plate under focuser
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