Celestron is a company based in Torrance, California, United States, that manufactures telescopes and distributes telescopes, binoculars, spotting scopes, microscopes, and accessories manufactured by its parent company, the Synta Technology Corporation of Taiwan.

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 came up with was a way to produce Schmidt corrector plates using a vacuum to pull the glass blanks into a pre-shaped curve mold called a "master block" during the polishing process. This allowed for the inexpensive mass production of corrector plates of uniform shape. The telescope line had a trademark matte orange tube (changed to glossy black in 1980, and back to semi-gloss orange in 2006), and double-fork equatorial mount, and became a popular large aperture, compact design.

Other telescopes product lines include the CGE, CGEM, CPC, NexStar, Omni, Onyx, AstroMaster, Ambassador, TravelScope, and PowerSeeker product lines. These range from large computerized reflectors with GPS to decorative/casual viewing telescopes with brass tube refractors on wood mounts.

Celestron has been an optics industry leader for decades, ever since Tom Johnson unveiled the game-changing C8. We strive to continue his legacy by continually developing exciting products with revolutionary technologies. Here, you can learn all about our patented, one-of-a-kind innovations.