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 20 of 24 
Orion Telescopes

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Beginner
*2nd* Orion StarSeeker II 102mm GoTo Refractor Telescope
Was 
$299.99
Now 
$254.99
You Save 
$45.00
 
Accepted Payment
In Stock


Item #  78991
  • Best for viewing
    Lunar & planetary
  • Best for imaging
    Lunar & planetary
  • User level
    Beginner
  • Optical design
    Refractor
  • Optical diameter
    102mm
  • Focal length
    660mm
  • Focal ratio
    f/6.5
  • Coatings
    Multi-coated
  • Optics type
    Air-spaced doublet
  • Glass material
    Crown/Flint
  • Eyepieces
    Kellner 25.0mm,10.0mm (1.25")
  • Magnification with included eyepieces
    26x, 66x
  • Resolving power
    1.14arc*sec
  • Lowest useful magnification
    15x
  • Highest useful magnification
    204x
  • Highest theoretical magnification
    204x
  • Limiting stellar magnitude
    12.7
  • Optical quality
    Diffraction limited
  • Finder scope
    EZ Finder II
  • Focuser
    2" Rack-and-pinion
  • Mount type
    Altazimuth
  • Astro-imaging capability
    Lunar & planetary
  • Computerized compatibility
    Go-To included
  • Alignment procedure
    SkyAlign, Auto 2-Star Align, 2-Star Alignment, 1-Star Align, Solar System Align
  • Number of objects in database
    4,000
  • Tracking rates
    Sidereal, Solar and Lunar
  • Motor speeds
    4°/Sec, 2°/Sec, 1°/Sec, 0.5°/Sec, 32x, 16x, 8x, 4x, 2x
  • Motor type
    DC Servo motors with encoders
  • Power requirement
    8-AA batteries or 12-volt DC
  • Setting circles
    Electronic, via the hand controller
  • Available ports
    RS-232
  • Tube material
    Aluminum
  • Tripod material
    Aluminum
  • Length of optical tube
    24.7 in.
  • Weight, optical tube
    5.5 lbs.
  • Weight, mount/tripod
    8.5 lbs.
  • Weight, fully assembled
    14.0 lbs.
  • Additional included accessories
    Other included items are not always the same between a new and a second. Seconds may be older versions of the new product, or may be customer returns where accessory substitutions have been made.
  • Other features
    2nds are covered by Orion's Satisfaction Guarantee
  • Warranty
    One year

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