The Hipparcos and Tycho Catalogues (Tycho-1) are the primary products of the European Space Agency's astrometric mission, Hipparcos. The European Space Agency ( ESA) established in 1975 is an intergovernmental organisation dedicated to the exploration of space, currently with 17 member Hipparcos (an Acronym for Hi gh P recision Par allax Co llecting S atellite) was an Astrometry mission The satellite, which operated for four years, returned high quality scientific data from November 1989 to March 1993.
The Hipparcos catalogue lists a little more than 118,000 stars with 1 to 3 milliarcsec level astrometry, while the Tycho catalogue lists a little more than 1,050,000 stars. A star is a massive luminous ball of plasma. The nearest star to Earth is the Sun, which is the source of most of the Energy on Earth A minute of arc, arcminute, or MOA is a unit of angular measurement, equal to one sixtieth (1/60 of one degree. Astrometry is the branch of Astronomy that relates to precise measurements and explanations of the positions and movements of Stars and other celestial bodies It is complete to magnitude 7. 3. [1]
The catalogues contain a large quantity of very high quality astrometric and photometric data. In addition there are associated annexes featuring variability and double/multiple star data, and solar system astrometric and photometric measurements. The principal parts are provided in both printed and machine-readable form.
The global data analysis tasks, proceeding from nearly 1000 Gbit of raw satellite data to the final catalogues, was a lengthy and complex process, and was undertaken by the NDAC and FAST Consortia, together responsible for the production of the Hipparcos Catalogue. The Foundation for Advancement of Science and Technology (FAST was established in 1980 as a private national institution A fourth scientific consortium, the INCA Consortium, was responsible for the construction of the Hipparcos observing programme, compiling the best-available data for the selected stars before launch into the Hipparcos Input Catalogue. The production of the Hipparcos and Tycho Catalogues marks the formal end of the involvement in the mission by the European Space Agency and the four scientific consortia. The European Space Agency ( ESA) established in 1975 is an intergovernmental organisation dedicated to the exploration of space, currently with 17 member
Footnotes
See also
- Category:HIP objects
- Celestia
- star catalogue
External links
Celestia is a 3-D Astronomy program created by Chris Laurel The program is based on the Hipparcos Catalogue (HIP and allows users to travel through an extensive A star catalogue, or star catalog, is an Astronomical catalogue that lists Stars In Astronomy, many stars are referred to simply by catalogueDapyx Software network: MP3 Explorer | Ebook Manager | Zenithic