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Orion Telescopes
Beginner
*2nd* Orion StarSeeker IV 150mm GoTo Reflector Telescope
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This product is no longer available for purchase.


Item #  73161
  • Best for viewing
    Lunar & bright deep sky
  • Best for imaging
    Lunar & planetary
  • User level
    Beginner
  • Optical design
    Reflector
  • Optical diameter
    150mm
  • Focal length
    750mm
  • Focal ratio
    f/5.0
  • Optics type
    Parabolic
  • Glass material
    Low thermal expansion glass
  • Eyepieces
    3-Element 23.0mm,10.0mm (1.25")
  • Magnification with included eyepieces
    32x, 75x
  • Resolving power
    0.77arc*sec
  • Lowest useful magnification
    17x
  • Highest useful magnification
    300x
  • Highest theoretical magnification
    300x
  • Limiting stellar magnitude
    13.5
  • Optical quality
    Diffraction limited
  • Finder scope
    EZ Finder II
  • Focuser
    1.25" Rack-and-pinion
  • Mirror coatings/over-coatings
    Enhanced Aluminum & Silicon Dioxide
  • Mount type
    Altazimuth
  • Astro-imaging capability
    Lunar & planetary
  • Computerized compatibility
    Go-To system
  • Alignment procedure
    Two-Star Alignment
  • Number of objects in database
    42,900
  • Tracking rates
    Sidereal, Solar and Lunar
  • Motor speeds
    Ten different slewing speeds from 0.5x sidereal to over 600x sidereal
  • Motor type
    DC Servo motors with encoders
  • Power requirement
    8-AA batteries or 12-volt DC
  • Polar-axis scope
    Sold separately
  • Available ports
    RS-232
  • Tube material
    Steel
  • Tripod material
    Steel
  • Tripod leg diameter
    1.25 in.
  • Length of optical tube
    24.2 in.
  • Weight, optical tube
    8.3 lbs.
  • Weight, mount/tripod
    14.0 lbs.
  • Weight, fully assembled
    22.3 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: $107.00
2 Day Delivery: $107.00
Next Day Delivery: $123.00

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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