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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. List of telescope parts and construction - Wikipedia

   en.wikipedia.org/wiki/List_of_telescope_parts...

   Primary lens: The objective of a refracting telescope. Primary mirror: The objective of a reflecting telescope. Corrector plate: A full aperture negative lens placed before a primary mirror designed to correct the optical aberrations of the mirror. Schmidt corrector plate: An aspheric-shaped corrector plate used in the Schmidt telescope.

4. Orion Telescopes & Binoculars - Wikipedia

   en.wikipedia.org/wiki/Orion_Telescopes_&_Binoculars

   Orion Telescopes & Binoculars was an American retail company that sold telescopes, binoculars and accessories online and in-store for astronomy and birdwatching. It was founded in 1975 and had corporate offices in Watsonville, California. [1] A large proportion of its products were manufactured by the Chinese company Synta for the Orion brand ...

5. List of astronomical catalogues - Wikipedia

   en.wikipedia.org/wiki/List_of_astronomical...

   LAMOST — Large Sky Area Multi-Object Fibre Spectroscopic Telescope (Guo Shoujing Telescope) Latham — (for example: Latham 1 at 13:10:50 / +30°28'36" in Coma Berenices) Latysev — (open star clusters) Lau — H.E. Lau (double stars) LBN — Lynds' Catalogue of Bright Nebulae; Lbz — P. Labitzke (double stars) LDN — Lynds' Catalogue of ...

6. Where to buy solar eclipse glasses and how to know if they're ...

   www.aol.com/lifestyle/solar-eclipse-glasses-2024...

   Celestron, maker of telescopes, binoculars and other optics, is a reliable brand you can trust. These "power viewers" allow you to safely view the eclipse, but also give your view a 2x ...

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]