Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ap%26ss.177..471y&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 177, no. 1-2, March 1991, p. 471-473.
Astronomy and Astrophysics
Astrophysics
2
Astrometry, Astronomical Catalogs, Instrument Errors, Instrument Orientation, Azimuth, Data Reduction, Optical Correction Procedure, Stellar Motions
Scientific paper
Presented is a method of global adjustment of stars' right ascensions for the compilation of an independent catalog obtained with a meridian circle. The concept of the problem is shown first, in which corrections to the catalog positions of observed stars can be determined directly by solving a set of observation equations constructed over many of nights. Some parameters such as clock correction, azimuth of artificial azimuth marks, and the correction to an adopted value of the latitude are assumed to vary regularly over the observation period. The present method is applied to the determination of the absolute azimuth of the Tokyo PMC by using upper and lower transits of azimuth stars.
Suzuki Shunsaku
Yoshizawa Masanori
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