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Orion Telescopes
Beginner
*2nd* Orion StarSeeker II 102mm GoTo Refractor Telescope
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This product is no longer available for purchase.


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

Orders received by 1pm Eastern Standard Time for in-stock item the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

A per-item shipping charge (in addition to the standard shipping and handling charge) applies to this product due to its size and weight. This charge varies based on the shipping method.

Standard Delivery: $0.00
3 Day Delivery: $82.00
2 Day Delivery: $82.00
Next Day Delivery: $96.00

SHIPPING RESTRICTIONS APPLY FOR THIS PRODUCT

This product is available to ship Standard delivery within the 50 US states, APO/DPO/FPO addresses and US territories/protectorates. Delivery is not available to Canada.

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