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  2. Obsession Telescopes - Wikipedia

    en.wikipedia.org/wiki/Obsession_Telescopes

    In 2007, Obsession Telescopes released a second series of telescopes more portable than their original design. They designated this series as Ultra Compact (UC), referring to their former one as 'Classic.' From 2009-2012 their telescopes ranged from USD 3000 for a 12.5 inch telescope, up to USD 12–15,000 for a 25-inch telescope.

  3. Talk:Obsession Telescopes - Wikipedia

    en.wikipedia.org/wiki/Talk:Obsession_Telescopes

    Obsession's New 18-inch scope by John Shibley Astronomy Magazine April 2008, Equipment review for the Obsession Ultra Compact 18 f/4.2 telescope Kalmbach Publishing 800-446-5489 Obsession Telescopes A New Obsession Introduction of Obsession 18 f/4.2 UC Astronomy Technology Today May 2007 info@astronomytechnologytoday.com

  4. Optical Mechanics, Inc. - Wikipedia

    en.wikipedia.org/wiki/Optical_Mechanics,_Inc.

    OMI mirrors are used by other telescope makers such as Obsession Telescopes. [1] Also taking on custom projects, they produced the 48-inch Dob, a 48.875-inch-diameter (1,241.4 mm) aperture, f / 4, Dobsonian telescope called "Barbarella" and featured in Astronomy Technology Today magazine (June 2008 Issue). [2] [3] OMI is located in the US state ...

  5. List of large optical telescopes - Wikipedia

    en.wikipedia.org/wiki/List_of_large_optical...

    This is a list of large optical telescopes. For telescopes larger than 3 meters in aperture see List of largest optical reflecting telescopes . This list combines large or expensive reflecting telescopes from any era, as what constitutes famous reflector has changed over time.

  6. Charles Burckhalter - Wikipedia

    en.wikipedia.org/wiki/Charles_Burckhalter

    In 1924, the 20-inch telescope at Chabot Observatory was dedicated to the memory of Charles Burckhalter, with a plaque mounted on the telescope pier. [11] The minor planet 3447 Burckhalter was named after him, [12] as was the Charles Burckhalter elementary school, [13] [14] Burckhalter park, [15] and Burckhalter avenue in Oakland. [16]

  7. List of largest optical refracting telescopes - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_optical...

    The Swedish 1-m Solar Telescope, with a lens diameter of 43 inches, is technically the largest, with 39 inches clear for the aperture.The second largest refracting telescope in the world is the Yerkes Observatory 40 inch (102 cm) refractor, used for astronomical and scientific observation for over a century.