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Orion Telescopes
Intermediate
Celestron C6-A Schmidt Cassegrain Optical Tube Assembly
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This product is no longer available for purchase.
  • 6" Schmidt-Cassegrain Optical Tube Assembly
  • Aluminum Optical Tube
  • Celestron's premium StarBright XLT coatings
  • 1500 mm focal length (f/10)
  • 25 mm eyepiece included (60x)


Learn more
Item #  53511
Mfg Model #  91010-XLT

6" Schmidt-Cassegrain Optical Tube Assembly

Aluminum Optical Tube

Celestron's premium StarBright XLT coatings

1500 mm focal length (f/10)

25 mm eyepiece included (60x)

Visual back allows for use with 1.25" accessories

6x30 finderscope to help accurately find objects

Star diagonal provides more comfortable viewing position when observing objects that are high in the sky

Includes dovetail rail compatible with CG-5 Advanced Series mount

Warranty

This product is serviced and supported by its manufacturer according to the terms and conditions included in the packaged product. Orion's limited warranty does not apply. Please contact the manufacturer directly for technical support.

  • Best for viewing
    Fainter deep sky
  • Best for imaging
    Deep sky
  • User level
    Intermediate
  • Optical design
    Schmidt-Cassegrain
  • Optical diameter
    150mm
  • Focal length
    1500mm
  • Focal ratio
    f/10.0
  • Magnification with included eyepieces
    60x
  • Resolving power
    0.77arc*sec
  • Lowest useful magnification
    21x
  • Highest useful magnification
    354x
  • Limiting stellar magnitude
    13.4
  • Finder scope
    6x30
  • Focuser
    Internal
  • Diagonal degrees
    1.25" 90° Mirror Star
  • Secondary mirror obstruction
    56mm
  • Secondary mirror obstruction by diameter
    37%
  • Secondary mirror obstruction by area
    14%
  • Mount type
    Optical Tube without Mount
  • Astro-imaging capability
    Lunar, planetary & long exposure
  • Tube material
    Aluminum
  • Length of optical tube
    16.0 in.
  • Weight, optical tube
    10.0 lbs.
  • Warranty
    Two 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: $60.00
2 Day Delivery: $60.00
Next Day Delivery: $75.00

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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