Schmidt camera
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A Schmidt camera, also referred to as the Schmidt telescope, is a catadioptric astrophotographic telescope designed to provide wide fields of view with limited aberrations. The design was invented by
Diagram of Schmidt camera
The 77 cm Schmidt-telescope from 1966 at Brorfelde Observatory was originally equipped with photographic film, and an engineer is here showing the film-box, which was then placed behind the locker at the center of the telescope (at the telescope's prime focus)
The 2 meter diameter Alfred Jensch Telescope at the Karl Schwarzschild Observatory in Tautenburg, Thuringia, Germany is the largest Schmidt camera in the world.
One of the Baker–Nunn cameras originally used by the Smithsonian satellite-tracking program
Kepler space telescope
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The Kepler space telescope was a space telescope launched by NASA in 2009 to discover Earth-sized planets orbiting other stars. Named after astronomer Johannes Kepler the spacecraft was launched into
Schmidt camera
…these provided the major source of all-sky photographic imaging from 1950 until 2000, when electronic detectors took over. A recent example is the Kepler space telescope exoplanet finder. Other related designs are the Wright camera and Lurie–Houghton telescope…
Kepler in Astrotech's Hazardous Processing Facility
Kepler's search volume, in the context of the Milky Way
Kepler's launch on March 7, 2009
Interior illustration of Kepler