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On the Organization of Absolute Coordinate Determination of the FK5 Stars

  • B. K. Bagildinsky
  • V. A. Fomin
  • I.S. Guseva
  • T. R. Kirian
  • A. A. Nemiro
  • G. M. Petrov
  • G. I. Pinigin
  • V. D. Shkutov
Conference paper
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 141)

Abstract

The present-day realization of inertial coordinate system by means of traditional optical astrometry is the Fifth Fundamental Catalogue (FK5). The series of observations with new meridian instruments (CAMC, PMC-190, BAMC, HMC) show the significant correlated differences (up to 0.71) of observational catalogues from the FK5. Moreover, FK5 mean epoch appears to be old (about 50 years ago) and FK5 proper motions would have essential errors owing to the fact that not many new original catalogues (only 25 in RA and 15 in DEC) were used when compiling FK5. It should be noted also that FK5 has a dissimilar accuracy of positions and proper motions of “old” and “new” stars.

Keywords

Proper Motion Meridian Circle Fundamental System Inertial Coordinate System Original Catalogue 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© IAU 1990

Authors and Affiliations

  • B. K. Bagildinsky
    • 1
  • V. A. Fomin
    • 1
  • I.S. Guseva
    • 1
  • T. R. Kirian
    • 1
  • A. A. Nemiro
    • 1
  • G. M. Petrov
    • 1
  • G. I. Pinigin
    • 1
  • V. D. Shkutov
    • 1
  1. 1.Central Astronomical ObservatoryUSSR Academy of SciencesLeningradUSSR

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