International Astronomical Union Symposia

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

Editors: Mueller, Ivan I., Kolaczek, Barbara (Eds.)

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About this book

In this review talk, I would like to report on the proper motion analysis, which has been recently carried out together with M. Soma and M. Yoshizawa: There has been a persistent demand in astronomy for accurate stellar positions and proper motions, which are represented by an inertial reference system constructed on the basis of a set of consistent astronomical constants. In the reference system the precessional constant plays a primary role. In a series of papers Fricke (1967a,b, 1977a,b) has deter­ mined the luni-solar precessional correction to Newcomb's value and the fictitious motion of the equinox, which have been adopted in the "IAU (1976) System of Astronomical Con­ stants". Based on the precessional correction and the equinoctial motion thus established, the fundamental reference system, the FK5 system (Fricke et al. 1988) for positions and proper motions, has been constructed. However, for several years geodetic VLBI (McCarthy & Luzum 1991) and LLR (Williams et at. 1991) observations have been suggesting an additional correction to the luni-solar precessional constant of the IAU (1976) System. That is, these observations indicate the precessional correction of 6. p ~ -0:'30/cent to the FK5 system. But, the observational period ofthe earth orientation is considered to be still insufficient to separate unambiguously the precessional change of the earth orientation from the nutation with the longest period of 18. 6 years.

Table of contents (84 chapters)

  • HIPPARCOS, Three years after launch

    Kovalevsky, J. (et al.)

    Pages 1-10

  • Analysis of HIPPARCOS Measurements: Positions, Proper motions, Parallaxes

    Walter, H. G. (et al.)

    Pages 11-18

  • Inertial Frame Determination from Hipparcos Observations of Minor Planets

    Hestroffer, D.

    Pages 19-24

  • Hipparcos Photometry of Minor Planets

    Morando, B. (et al.)

    Pages 25-30

  • A CCD Modulation Detector for a Second Hipparcos Mission

    Høg, E. (et al.)

    Pages 31-36

Buy this book

eBook $169.00
price for USA (gross)
  • ISBN 978-94-011-1711-1
  • Digitally watermarked, DRM-free
  • Included format: PDF
  • ebooks can be used on all reading devices
  • Immediate eBook download after purchase
Softcover $229.00
price for USA
  • ISBN 978-0-7923-2238-2
  • Free shipping for individuals worldwide
  • Usually dispatched within 3 to 5 business days.
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Bibliographic Information

Bibliographic Information
Book Title
Developments in Astrometry and Their Impact on Astrophysics and Geodynamics
Book Subtitle
Proceedings of the 156th Symposium of the International Astronomical Union Held in Shanghai, China, September 15–19, 1992
Editors
  • Ivan I. Mueller
  • Barbara Kolaczek
Series Title
International Astronomical Union Symposia
Series Volume
156
Copyright
1993
Publisher
Springer Netherlands
Copyright Holder
Springer Science+Business Media Dordrecht
eBook ISBN
978-94-011-1711-1
DOI
10.1007/978-94-011-1711-1
Softcover ISBN
978-0-7923-2238-2
Series ISSN
1743-9213
Edition Number
1
Number of Pages
XXXI, 440
Topics