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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 complex.
Digistar is the first computer graphics-based planetarium projection and content system.It was designed by Evans & Sutherland and released in 1983. The technology originally focused on accurate and high quality display of stars, including for the first time showing stars from points of view other than Earth's surface, travelling through the stars, and accurately showing celestial bodies from ...
The Planetarium uses the Zeiss Model M1015 star projector, manufactured by Carl Zeiss, Inc. of Germany. It is the first of its kind to be installed anywhere in the world. It projects 7,600 stars down to magnitude 6, 25 star clusters and nebulae, the sun, moon, and the five planets visible to the human eye. The Zeiss can show the daily motions ...
A dominant feature of most planetariums is the large dome-shaped projection screen onto which scenes of stars, planets, and other celestial objects can be made to appear and move realistically to simulate their motion. The projection can be created in various ways, such as a star ball, slide projector, video, fulldome projector systems, and lasers.
Gliese 710, or HIP 89825, is an orange 0.6 M ☉ star in the constellation Serpens Cauda. It is projected to pass near the Sun in about 1.29 million years at a predicted minimum distance of 0.051 parsecs—0.1663 light-years (10,520 astronomical units) [5] (about 1.6 trillion km)—about 1/25th of the current distance to Proxima Centauri. [10]
The fixed stars, for example the Pole Star (Polaris), can be demonstrated to be very far away by diurnal parallax measurements. Such measurements show no shifts in the stars' positions. Unlike the Sun, Moon, and planets, they do not change position with respect to one another over human lifetimes; the shapes of the constellations are constant ...
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