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Astrograph Telescopes

For serious astrophotographers, an optical tube that has quality optics and suitable specifications is key to producing successful images. Astrographs come in many different specifications and designs, so each model can be oriented or preferred for a different type of imaging (eg. solar, terrestrial, deep sky etc). Some common designs include the Ritchey-Chrétien, Riccardi Honders, and Catadioptric optical tubes. Choosing an astrograph depends on how the astro-imager wants to observe, what focal length and focal ratio it has, aperture, optical coatings, and how suitable it is for the camera they intend to use.

A key specification very important to consider when choosing an astrograph is focal ratio in relation to aperture. This is an important to remember because focal ratio determines what the magnification and field of view the observor will get. Therefore, if the observor intends to mainly view deep sky objects with lower surface brightnesses, a shorter focal length will reduce magnification and increase field of view since most deep sky objects tend to appear very large but not bright. Astrograph telescopes with slower focal ratios such as an f/12 will provide higher magnification and smaller field of views; better for planetary observing.

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  1. Celestron - 6" Newtonian Reflector Optical Tube Assembly

    Celestron - 6" Newtonian Reflector Optical Tube Assembly

    The Celestron Advanced VX 6" Newtonian Telescope is excellent for basic deep sky observing as well as planetary observing due to its impressive light gathering power of the mirrors and mid fast focal ratio.

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    Model#: 32054-OTA

    Regular Price: $269.00

    Special Price: $179.00

  2. Celestron - Rowe-Ackermann Schmidt Astrograph OTA

    Celestron - Rowe-Ackermann Schmidt Astrograph OTA

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    (48 States)
    Model#: Rowe-Ackermann Schmidt Astrograph Optical Tube Assembly
    $3,499.00

  3. Celestron - Rowe-Ackermann Schmidt Astrograph - Optical Tube (OTA) only

    Celestron - Rowe-Ackermann Schmidt Astrograph - Optical Tube (OTA) only

    The Rowe-Ackermann Schmidt Astrograph features newly designed optics with 4-element rare-earth glass for images free of false color and aberrations like ... Learn More
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    (48 States)
    Model#: 91075
    $3,499.95

  4. Celestron - Rowe-Ackermann Schmidt Astrograph with CGE Pro

    Celestron - Rowe-Ackermann Schmidt Astrograph with CGE Pro

    The Rowe-Ackermann Schmidt Astrograph builds on the legacy of Celestron’s Schmidt Camera, the appearance of ... Learn More
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    (48 States)
    Model#: 11101
    $7,999.95

  5. Celestron - Rowe-Ackermann Schmidt Astrograph with CGEM DX

    Celestron - Rowe-Ackermann Schmidt Astrograph with CGEM DX

    Capturing impressive deep-sky astroimages is easier than ever with Celestron’s new Rowe-Ackermann Schmidt Astrograph, the perfect companion to ... Learn More
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    (48 States)
    Model#: 11006
    $4,999.95

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