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A star tracker is an optical device that measures the positions of ... In the 1950s and early 1960s, star trackers were an important part of early long-range ...
Volunteer satellite trackers in Pretoria, South Africa. Operation Moonwatch (also known as Project Moonwatch and, more simply, as Moonwatch) was an amateur science program formally initiated by the Smithsonian Astrophysical Observatory (SAO) in 1956. [1]
c. 300 BC — star catalog of Timocharis of Alexandria; c. 134 BC — Hipparchus makes a detailed star map; c. 150 — Ptolemy completes his Almagest, which contains a catalog of stars, observations of planetary motions, and treatises on geometry and cosmology; c. 705 — Dunhuang Star Chart, a manuscript star chart from the Mogao Caves at Dunhuang
Its "blue light" source star tracker, which could see stars during both day and night, would continuously track a variety of stars as the aircraft's changing position brought them into view. The system's digital computer ephemeris contained data on a list of stars used for celestial navigation : the list first included 56 stars and was later ...
1864 – Herschel's so-called GC (General Catalogue) of nebulae and star clusters published; 1868 – Janssen and Lockyer discover Helium observing spectra of the Sun; 1871 – German Astronomical Association organized network of 13 (later 16) observatories for stellar proper motion studies
Kronos (a.k.a. Kronos, Destroyer of the Universe or Kronos, Ravager of Planets) is a 1957 American black-and-white science fiction film from Regal Films, a division of 20th Century-Fox.
Little Jimmy Dickens 4-foot 11 inch star of the Grand Ole Opry. Goldie Hill, the "golden hillbilly", best known for the hit song "I Let the Stars Get in My Eyes". Wilf Carter, the "yodeling" cowboy, aka Montana Slim. Jean Shepard, one of Country's leading female vocalists in the 1950s. Webb Pierce, classic honky-tonker who dominated '50s ...
A barn door tracker, also known as a Haig or Scotch mount, is a device used to cancel out the diurnal motion of the Earth for the observation or photography of astronomical objects. It is a simple alternative to attaching a camera to a motorized equatorial mount .