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Developments in Astrometry and Their Impact on Astrophysics and Geodynamics - Proceedings of the 156th Symposium of the International Astronomical Union, Held in Shanghai, China, September 15-19, 1992 (Hardcover)
Loot Price: R5,180
Discovery Miles 51 800
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Developments in Astrometry and Their Impact on Astrophysics and Geodynamics - Proceedings of the 156th Symposium of the International Astronomical Union, Held in Shanghai, China, September 15-19, 1992 (Hardcover)
Series: International Astronomical Union Symposia (Closed), v. 156
Expected to ship within 12 - 17 working days
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The following topics are addressed: space astrometric missions,
ground based optical techniques, very long baseline interferometric
(VLBI) techniques, impact of these techniques on astrophysics and
on geodynamics, and issues related to celestial and terrestrial
reference frames. In the area of space optical astrometry, the
reduction of one year of data from the Hipparcos mission shows
excellent results for more than 40,000 stars. Recent developments
in ground-based optical astrometry are concentrated on CCB meridian
circles and transit instruments. The VLBI technique is the most
powerful method to determine the earth rotation parameters,
nutation series, and baseline lengths. More accurate celestial and
terrestrial reference frames are needed and recent achievements in
this field are presented, for example FK5 catalogues and a
comparison of VLA and Hipparcos positions.
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