A precession study based on the astrometric series and the combined astrometric catalogue EOC-2

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

3

Astrometric Catalogues, Precession, Earth Orientation Parameters

Scientific paper

The new star catalogue EOC-2 has been used for the new solution of Earth Orientation Parameters (EOP) from optical astrometry over the interval 1899.7-1992.0. The same procedures as in the preceding solutions (c.f. Vondrák & Ron 2000) were followed, with two exceptions: 1. The IAU 2000 model of nutation and the improved P03 model of precession (Capitaine et al. 2003) were used which led to much smaller values of the celestial pole offsets (CPO), 2. the CPO in longitude and obliquity were represented by a constant, linear and quadratic terms instead of the 5-day individual values as before. The values obtained for the linear and quadratic terms of the CPO are compared and discussed in view of a possible validation of the P03 precession model.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A precession study based on the astrometric series and the combined astrometric catalogue EOC-2 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A precession study based on the astrometric series and the combined astrometric catalogue EOC-2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A precession study based on the astrometric series and the combined astrometric catalogue EOC-2 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-757928

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.