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2. Planetarium projector - Wikipedia

   en.wikipedia.org/wiki/Planetarium_projector

   A Zeiss Universarium Mark IX starball projector. A planetarium projector, also known as a star projector, is a device used to project images of celestial objects onto the dome in a planetarium. Modern planetarium projectors were first designed and built by the Carl Zeiss Jena company in Germany between 1923 and 1925, and have since grown more ...

3. Holcomb Observatory and Planetarium - Wikipedia

   en.wikipedia.org/wiki/Holcomb_Observatory_and...

   The planetarium with its recently installed Lambda projector. Second, In early 2018 the planetarium had its old analog Spitz AP3 star projector replaced with a digital fulldome digital projector. A new Digitarium Kappa projector was installed with more than 4 million pixels onto the dome of the planetarium which gives visitors a fully immersive ...

4. Planetarium - Wikipedia

   en.wikipedia.org/wiki/Planetarium

   Smaller planetarium projectors include a set of fixed stars, Sun, Moon, and planets, and various nebulae. Larger projectors also include comets and a far greater selection of stars. Additional projectors can be added to show twilight around the outside of the screen (complete with city or country scenes) as well as the Milky Way.

5. Ceiling projector - Wikipedia

   en.wikipedia.org/wiki/Ceiling_projector

   The ceiling projector or cloud searchlight is used to measure the height of the base of clouds (called the ceiling) above the ground. It is used in conjunction with an alidade, usually positioned 1000 ft (300 m) away and wherever possible set at the same level. The projector is normally set at 90°, although 71° 31' may be used, in relation to ...

6. Zeiss projector - Wikipedia

   en.wikipedia.org/wiki/Zeiss_projector

   The first modern planetarium projectors were designed and built in 1924 by the Zeiss Works of Jena, Germany. [2] Zeiss projectors are designed to sit in the middle of a dark, dome-covered room and project an accurate image of the stars and other astronomical objects on the dome. They are generally large, complicated, and imposing machines.

7. Star projector - Wikipedia

   en.wikipedia.org/?title=Star_projector&redirect=no

   Retrieved from "https://en.wikipedia.org/w/index.php?title=Star_projector&oldid=233474926"This page was last edited on 22 August 2008, at 04:39 (UTC) (UTC)