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  2. Celestron - Wikipedia

    en.wikipedia.org/wiki/Celestron

    Celestron was the first large scale commercial manufacturer of the Schmidt-Cassegrain telescope, introducing its "C8" 8" diameter 2032 mm focal length, ƒ10 telescope in 1970. [7] The primary innovation Celestron/Tom Johnson devised was a method to produce Schmidt corrector plates using a vacuum to pull the glass blanks into a pre-shaped curve ...

  3. Hector J. Robinson Observatory - Wikipedia

    en.wikipedia.org/wiki/Hector_J._Robinson_Observatory

    Since 2009, the new main telescope has been operational and the old telescope has been removed. The 8-inch (200 mm) Newtonian, built in 1977, was salvaged from a scrapyard by a former member of the astronomy club. The new main telescope mounted in the observatory is a Celestron C-14.

  4. SUNY Oneonta College Observatory - Wikipedia

    en.wikipedia.org/wiki/SUNY_Oneonta_College...

    The SUNY Oneonta Observatory is an astronomical observatory in Oneonta, New York, home to the state's largest optical telescope and one of the largest publicly open east of the Mississippi, a one-meter (40 inch) Newtonian reflector constructed by JMI Telescopes of Lakewood, Colorado. The JMI website quotes the cost of the telescope at $159,000. [1]

  5. List of the largest optical telescopes in North America

    en.wikipedia.org/wiki/List_of_the_largest...

    Name / Observatory Image Out Image In Aperture First Light Nation Hale Telescope Palomar Obs. 200 inch 508 cm 1949 USA Hooker Telescope Mount Wilson Obs.

  6. List of largest optical reflecting telescopes - Wikipedia

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

    These telescopes are under construction and will meet the list inclusion criteria once completed: Extremely Large Telescope, Chile – 39.3 m (1,550 in). Construction began in 2018, first light planned in 2028. [23] Thirty Meter Telescope, Hawaii, USA – 30 m (1,200 in).

  7. Tom Johnson (astronomer) - Wikipedia

    en.wikipedia.org/wiki/Tom_Johnson_(astronomer)

    The Celestron 8 was more compact, affordable and easier to manufacture than traditional telescopes, like the Schmidt–Cassegrain. [2] Johnson's new telescope proved very popular in the amateur astronomy and educational industries, allowing the hobby to rapidly expand and reach more consumers. [2] Johnson sold Celestron in 1980. [2]

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