Perryman, Michael A. C. Space Science Department, European Space Agency, European Space Research and Technology Centre, Noordwijk, The Netherlands.
- Star position measurements
- Space-based measurements
- Operational principle of Hipparcos
- Applications of Hipparcos data
- Links to Primary Literature
- Additional Readings
The Hipparcos space astronomy mission was dedicated to the very accurate measurement of star positions and star motions in space. The satellite was designed, built, and operated under the responsibility of the European Space Agency. It was launched in August 1989 and operated until mid-1993. The two resulting star catalogs were completed and published in 1997: The Hipparcos Catalogue is a high-accuracy compilation of nearly 120,000 star positions, distances, and motions; the Tycho Catalogue is a lower-accuracy catalog of slightly more than 1 million stars. Together they represent astronomers' best understanding of the spatial distribution, space motion, and corresponding physical properties of stars in the solar neighborhood. The experiment was carried out by a collaboration of about 200 scientists.
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information