An observational determination of the principal nutation constants

Details An observational determination of the principal nutation constants An observational determination of the principal nutation constants

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981acasn..22...15r&link_type=abstract

(Acta Astronomica Sinica, vol. 22, Mar. 1981, p. 15-17.) Chinese Astronomy and Astrophysics, vol. 5, Sept. 1981, p. 295-297. Tra

Astronomy and Astrophysics

Astrophysics

Binary Stars, Nutation, Stellar Motions, Stellar Oscillations, Annual Variations, Least Squares Method

Scientific paper

The longitude and obliquity components of the principal nutation terms were derived from observations made in 1955-1977 of 43 star-pairs common to the ILS Programs VI and VII. The observations were reduced to a uniform system appropriate to these 43 star-pairs. The results are 6.850 arcsec for the longitude component and 9.212 arcsec for the obliquity component.

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