This article is about an astronomy device. For tripod mounts (camera equipment), see Astrophotography § Equipment setups.
A star tracker is an optical device that measures the positions of stars using photocells or a camera.[1]
As the positions of many stars have been measured by astronomers to a high degree of accuracy, a star tracker on a satellite or spacecraft may be used to determine the orientation (or attitude) of the spacecraft with respect to the stars. In order to do this, the star tracker must obtain an image of the stars, measure their apparent position in the reference frame of the spacecraft, and identify the stars so their position can be compared with their known absolute position from a star catalog. A star tracker may include a processor to identify stars by comparing the pattern of observed stars with the known pattern of stars in the sky.
^"Star Camera". NASA. May 2004. Archived from the original on July 21, 2011. Retrieved 25 May 2012.
A startracker is an optical device that measures the positions of stars using photocells or a camera. As the positions of many stars have been measured...
often mispronounced as StarTrackStar Trak Entertainment, a record label also known as Star Trak Startracker, an optical device Star trail, a photographic...
attitude is the startracker, but Earth sensors are still integrated in satellites for their low cost and reliability. A startracker is an optical device...
StarTrack is an Australian transport and logistics company owned by Australia Post. StarTrack was founded in 1974, as Multigroup Distribution Services...
engineering testing. Problems during its initial stages and with its startracker led to repeated changes in mission configuration. While the flyby of...
failure of the Canopus startracker (probably due to stray sunlight) and overheating during its cruise to the Moon. The startracker problem was resolved...
door tracker was created by George Haig. His plans were first published in Sky & Telescope magazine in April 1975. Modified versions of the tracker were...
to vibration and thermal cycling) Celestial navigation Earth sensor Startracker "LIASS: LInear Accurate Sun Sensor" (PDF). Airbus Defense & Space. Retrieved...
The STAR detector (for Solenoidal Tracker at RHIC) is one of the four experiments at the Relativistic Heavy Ion Collider (RHIC) in Brookhaven National...
A star is a luminous spheroid of plasma held together by self-gravity. The nearest star to Earth is the Sun. Many other stars are visible to the naked...
minutes later. After Sun acquisition, the Canopus startracker went searching for Canopus. The startracker was set to respond to any object more than one-eighth...
navigation Star catalogue Catalogues of Fundamental Stars Guide Star Catalog List of stars for navigation Pole star Guide starStartracker Fine guidance...
soundtrack to the 1939 Japanese film. Guitarist Jorma Kaukonen wrote two tracks, "StarTrack" and "Ice Cream Phoenix", the latter starting out as a ten-minute...
the Earth's rotation by driving the right ascension axis, similar to a startracker. However using an auto-guiding system, the secondary declination axis...
in Power Laps and Star in a ... Car. For the 23rd series of Top Gear the track was expanded with a rallycross section for the "Star in a Rallycross Car"...
seasons beginning with the 2013 AFL season, Manuka Oval was branded as StarTrack Oval during Australian rules football matches. The naming rights deal...
Sports Tracker, earlier Nokia Sports Tracker, was originally a software tool for Symbian Series 60 phones (particularly those that included a GPS facility...
"e2v and Sodern celebrate the sale of the 100th satellite attitude startracker incorporating e2v image sensors". e2v. 25 October 2007. "New Scientist...
Track Stars may refer to: "TrackStar" (song), an R&B/trap song by Mooski Track Stars, a Thomas the Tank Engine pictureback book Track Stars: The Unseen...
Star Wars is an American epic space opera media franchise created by George Lucas, which began with the eponymous 1977 film and quickly became a worldwide...
large infrared telescope, the two-inch aperture startracker was used for more than a decade as a bright-star asteroseismology instrument. Re-entered Earth's...