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=1981cha%26a...5..295r&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 5, Issue 3, p. 295-297.

Astronomy and Astrophysics

Astrophysics

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 Programmes VI and VII. The observations were reduced to a uniform system appropriate to these 43 star-pairs. The results are 6'.'850 for the longitude component and 9'.'212 for the obliquity component.
Also particiapating in the present work were XU Bang-xin, DING Yue-rong, LIU Gui-xia and WU Zhi-lun.

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