On the celestial reference frame independent of the dynamical planes of the earth

Details On the celestial reference frame independent of the dynamical planes of the earth On the celestial reference frame independent of the dynamical planes of the earth

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991acasn..32..297z&link_type=abstract

(Acta Astronomica Sinica, vol. 32, no. 3, 1991, p. 297-303) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 16, no. 1,

Astronomy and Astrophysics

Astronomy

Astrometry, Celestial Reference Systems, Geodetic Accuracy, Radio Sources (Astronomy)

Scientific paper

The paper demonstrates that traditional CCRS/CCRF (conventional celestial reference systems/conventional celestial reference frames), e.g., FK5 and available radio source catalogs, which are based on the conceptions of equator and equinox, can be replaced by the DCRS/DCRF (directly defined celestial reference systems/directly defined celestial reference frames) that are only based on the directions of a group of extragalactic objects. In this case, the transformation parameters W0, W, and H between CCRS and DCRS can be used as astronomical constants for geodetic purposes. These parameters can be determined by observations.

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