Celestat (from lat. Caelum - sky and other Greek stat贸s - standing, motionless) is an auxiliary device on fixed telescopes , with which astronomers observe and photograph celestial bodies moving due to the visible daily rotation of the celestial sphere .
Content
- 1 device
- 2 History
- 3 See also
- 4 Sources
Device
The coelostat consists of 2 flat mirrors. The clockwork rotates one mirror around an axis parallel to the plane of this mirror and the axis of the world. The time of one revolution is 48 hours. When the mirror rotates, the perpendicular to it slides along the celestial equator, and a ray coming from any point of the rotating celestial sphere is reflected from the mirror in a constant direction. The second, fixed mirror allows you to direct the beam coming from the celestial body into the telescope lens.
History
Designed and first made by Gabriel Lippman .
One of the first Soviet integers was manufactured at the State Optical and Mechanical Plant (GOMZ, later LOMO ) in 1936.
See also
- Heliostat
Sources
- Celestat // Great Soviet Encyclopedia : [in 30 vol.] / Ch. ed. A.M. Prokhorov . - 3rd ed. - M .: Soviet Encyclopedia, 1969-1978.