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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. AG Optical 12.5" Dall Kirkham Astrograph Telescope

    AG Optical - 12.5" Dall Kirkham Astrograph Telescope

    A great benefit behind the Dall Kirkham design is excellent off-axis performance. The 12.5 astrograph from AG Optical is in a carbon fiber tub and has a medium focal ratio with a large aperture to support a variety optical and astrophotography combinations.

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    (48 States)
    Model#: 125IDK

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $12,995.00

  2. AG Optical 14" Imaging Harmer Wynne Astrograph

    AG Optical - 14" Imaging Harmer Wynne Astrograph

    Imaging Harmer Wynne (iHW) astrographs are high resolution, fast focal ratio instruments with excellent on and off axis performance.

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    Model#: iHW14

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $23,975.00

  3. AG Optical 14.5" iDK Astrograph Telescope

    AG Optical - 14.5" Dall Kirkham Astrograph Telescope

    Imaging Dall Kirkham (iDK) astrographs are high resolution instruments with outstanding on and off axis performance across a 60mm field of view.

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    (48 States)
    Model#: 145IDK

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $16,700.00

  4. AG Optical 16" Imaging Harmer Wynne Astrograph

    AG Optical - 16" Imaging Harmer Wynne Astrograph

    Imaging Harmer Wynne (iHW) astrographs are high resolution, fast focal ratio instruments with excellent on and off axis performance.

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    (48 States)
    Model#: iHW16

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $27,595.00

  5. AG Optical 17" Dall Kirkham Astrograph Telescope

    AG Optical - 17" Dall Kirkham Astrograph Telescope

    The AG Optical 17" iDK Astrograph is an excellent astrograph for a wide variety of astrophotography. The telescope has a medium focal ratio of f/6.7 with 6 micron RMS spot size. This means that stars appear very pinpoint while still at large field of view.

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    Model#: 17IDK

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $20,995.00

  6. AG Optical 20" iDK Astrograph Telescope

    AG Optical - 20" Dall Kirkham Astrograph Telescope

    The 20" AG Optical astrograph has a medium focal ratio of f/6.7. This optical tube has a two element <0.5% reflective corrector which makes this possible by reducing many of the common light distortions such as coma.

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    Model#: 20IDK

    This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.

    $29,995.00

  7. ASA - 10" f/3.8 10N Astrograph

    ASA - 10" f/3.8 10N Astrograph

    ASA, also known as Astro Systeme Austria has developed the ASA 10" F/3.8 model-10N Astrograph Optical Tube Assembly (OTA) which is an excellent starting point for the amateur astronomers who strive to do astro-imaging and wish to configure a custom system. The ASA OTA is a great example of a fast and wide field optical imaging system great for high quality imaging and also capable of working at multiple focal lengths.

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    Model#: ASA-ASA10NO3

    This item is custom made and will be made per your request. Payment is due in advance.

    $7,150.00

  8. ASA - 12" f/3.8 12N Newtonian Astrograph OTA with Accessories

    ASA - 12" f/3.8 12N Newtonian Astrograph OTA with Accessories

    ASA, also known as Astro Systeme Austria has developed the ASA 12" F/3.8 model-12N Astrograph Optical Tube Assembly (OTA) which is an excellent starting point for the amateur astronomers who strive to do astro-imaging and wish to configure a custom system. The ASA OTA is a great example of a fast and wide field optical imaging system great for high quality imaging and also capable of working at multiple focal lengths.

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    Model#: ASA-ASA12NO3

    This item is custom made and will be made per your request. Payment is due in advance.

    $9,750.00

  9. ASA - 16" f/3.8 16N Newtonian Astrograph OTA with Accessories

    ASA - 16" f/3.8 16N Newtonian Astrograph OTA with Accessories

    ASA, also known as Astro Systeme Austria has developed the ASA 16" F/3.8 model-16N Astrograph Optical Tube Assembly (OTA) which is an excellent starting point for the amateur astronomers who strive to do astro-imaging and wish to configure a custom system. The ASA OTA is a great example of a fast and wide field optical imaging system great for high quality imaging and also capable of working at multiple focal lengths.

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    Model#: ASA-ASA16NO3

    This item is custom made and will be made per your request. Payment is due in advance.

    $18,595.00

  10. ASA 8" 8H Astrograph Hyperbolic Primary with 3" Focuser - OTA Only

    ASA - 8" 8H Astrograph Hyperbolic Primary with 3" Focuser - OTA Only

    The ASA 8" 8H Astrograph Hyperbolic Primary with 3" Focuser uses a hyperbolic primary mirror. With high quality and low expansion Suprax primary and secondary mirrors (P/V <1>97% reflectivity) and with their own interferogram, the ASA astrographs are an astrophotographers dream! To make collimation easier for the user, ASA has implemented a centered triangle reference mark on the primary mirror.

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    Model#: ASA-ASA8HOK3ZK

    This item is custom made and will be made per your request. Payment is due in advance.

    $9,895.00

  11. ASA Newtonian Astrograph Optical Tube Assembly

    ASA - 8" f/3.8 8N Newtonian Astrograph OTA with Accessories

    ASA, also known as Astro Systeme Austria has developed the ASA 8" F/3.8 model-8N Astrograph Optical Tube Assembly (OTA) which is an excellent starting point for the amateur astronomers who strive to do astro-imaging and wish to configure a custom system. The ASA OTA is a great example of a fast and wide field optical imaging system great for high quality imaging and also capable of working at multiple focal lengths.

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    Model#: ASA-ASA8NO3

    This item is custom made and will be made per your request. Payment is due in advance.

    $5,850.00

  12. Astro-Tech 10" Ritchey Chretien Astrograph with 3 Built in Rear Fans

    Astro-Tech - 10" Ritchey Chretien Astrograph with 3 Built in Rear Fans

    Developed by Astro-Tech to make large-format CCD imaging affordable for the amateur astronomer, the Astro-Tech AT10RCF is priced thousands of dollars less than the formerly least-expensive 10” R-C. The Astro-Tech AT10RCF is the first truly affordable large aperture true Ritchey-Chrétien astrograph available from a U. S. company.

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    Model#: AT10RCF

    Available

    $3,495.00

  13. Astro-Tech - 10" Ritchey Chretien Telescope

    Astro-Tech - 10" Ritchey Chretien Telescope

    Optical tubes based upon the Ritchey Chretien design are known very well for their successfull astrophotography, and the 10" optical tube by Astro-Tech is no different! What is different is the price!

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    Model#: AT10RC

    Available

    $2,495.00

  14. Astro-Tech - 12" Ritchey Chretien Astrograph

    Astro-Tech - 12" Ritchey Chretien Astrograph

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    Model#: AT12RC

    Available

    $3,995.00

  15. Astro-Tech 6" Ritchey Chretien Telescope

    Astro-Tech - 6" Ritchey Chretien Telescope

    Ritchey Chretien astrograph telescopes are exclusively used in many professional fields, including the HST. Astro-Tech has designed a 6" f/9 Astrograph that is based upon this design to the amateur astronomer at affordable prices.

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    (48 States)
    Model#: AT6RC

    Available

    Regular Price: $499.00

    Special Price: $399.00

  16. Astro-Tech - 8" Ritchey Chretien Telescope

    Astro-Tech - 8" Ritchey Chretien Telescope

    A telescope with high quality optics is key to great observing. However, a high quality telescope priced reasonably is less common.

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    Model#: AT8RC

    Available

    $1,395.00

  17. Borg - 71 FL f/3.9 Astrograph Set (2571 + 2x 7050 + 7801 + 7835 + 7602 + 7870)

    Borg - 71 FL f/3.9 Astrograph Set (2571 + 2x 7050 + 7801 + 7835 + 7602 + 7870)

    Modular design is a strong point of the Borg system. This allows the use of many Borg components across several families of telescope sizes, ... Learn More
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    (48 States)
    Model#: B07139

    Available

    $1,898.00

  18. B07160

    Borg - 71 FL f/6.0 Astrograph Set (2571 + 6000 + 7108)

    Modular design is a strong point of the Borg system. This allows the use of many Borg components across several families of telescope sizes, ... Learn More
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    (48 States)
    Model#: B07160

    Available

    $1,715.00

  19. Celestron 11" RASA and CGX Mount

    Celestron - 11" Rowe-Ackermann and CGX Equatorial Mount

    The Celestron CGX Equatorial Mount is a revolution in EQ mount design. Weighing just 40 pounds with a modest estimated instrument capacity of 55 pounds, upgraded worm gears on both axes, AllStar alignment procedure, optical stop sensors, through mount wiring and available home position - this mount was built to outperform. Versatile mount is easy to transport thanks to two carry handles and has a dual saddle plate to accept both V and D series dovetails. Includes incredible full-featured control software for remote mount control. ... Learn More
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    (48 States)
    Model#: CEL-12059

    Available - Ships in 5-7 Days

    $5,199.00

  20. Celestron 11" Rowe-Ackermann Schmidt Astrograph - Optical Tube (OTA) only

    Celestron - 11" 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#: CEL-91075

    In Stock

    $3,499.00

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