Počet záznamů: 1

New precession expressions, valid for long time intervals

  1. 1.
    0370060 - ASU-R 2012 RIV FR eng J - Článek v odborném periodiku
    Vondrák, Jan - Capitaine, N. - Wallace, P.
    New precession expressions, valid for long time intervals.
    Astronomy & Astrophysics. Roč. 534, October (2011), A22/1-A22/19 ISSN 0004-6361
    Grant CEP: GA MŠk(CZ) LC506
    Výzkumný záměr: CEZ:AV0Z10030501
    Klíčová slova: astrometry * ephemerides * reference systems
    Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
    Impakt faktor: 4.587, rok: 2011
    www.aanda.org

    Series for the various precessional parameters, comprising a cubic polynomial plus from 8 to 14 periodic terms, are derived. These allow to compute precession with an accuracy that is comparable to IAU 2006 model close to central epoch J2000.0, a few arcseconds throughout the historical period, and a few tenths of a degree an the ends of the +/- 200 millennia time span. Computer algorithms are also provided.
    Trvalý link: http://hdl.handle.net/11104/0203972