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Orion Telescopes
Intermediate
*2nd* Orion 10" f/3.9 Newtonian Astrograph Reflector
Not Available
Accepted Payment
This product is no longer available for purchase.


Item #  78296
  • User level
    Intermediate
  • Optical design
    Reflector
  • Optical diameter
    254mm
  • Focal length
    1000mm
  • Focal ratio
    f/3.9
  • Optics type
    Parabolic
  • Glass material
    Low thermal expansion glass
  • Resolving power
    0.46arc*sec
  • Lowest useful magnification
    25x
  • Highest useful magnification
    300x
  • Highest theoretical magnification
    500x
  • Limiting stellar magnitude
    14.7
  • Optical quality
    Diffraction limited
  • Finder scope
    9x50
  • Focuser
    2" dual-speed Crayford
  • Secondary mirror obstruction
    82mm
  • Secondary mirror obstruction by diameter
    32%
  • Secondary mirror obstruction by area
    10%
  • Mirror coatings/over-coatings
    Enhanced Aluminum & Silicon Dioxide
  • Mount type
    Optical Tube without Mount
  • Astro-imaging capability
    Lunar, planetary & long exposure
  • Tube material
    Steel
  • Length of optical tube
    38.6 in.
  • Weight, optical tube
    25.5 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 items ship 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: $181.00
2 Day Delivery: $181.00
Next Day Delivery: $216.00

SHIPPING RESTRICTIONS APPLY FOR THIS PRODUCT

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

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