THE LONG TERM MOTION OF COMET HALLEY Accepted for the Publication in the Monthly Notices of the Royal Astronomical Society March 1981. Fair

National Aeronautics and Space Administration, 1981

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Dettagli

Anno di pubblicazione

1981

Autore

Yeomans, Donald K. & Tao Kiang

Editori

National Aeronautics and Space Administration

Soggetto

Science & Religion Space Mathematics

Descrizione

Fair

Descrizione

Stapled wraps

Descrizione

Stapled wraps are water-stained. Former owner's name to front wrap (Masier) and small marginalia in red pen to 2 pages (corrections). Water-staining to edges of some pages. ; The orbital motion of comet Halley is numerically integrated back to 1404 BC. Starting with an orbit based on the 1759, 1682, and 1607 observations of the comet, the integration was run back in time with full planetary perturbations and nongravitational forces taken into account at each 0.5 day time-step. Small empirical corrections were made to the computed perihelion passage time in 837 and to the osculating orbital eccentricity in 800. In nine cases, the perihelion passage times calculated by Kiang (1971) from Chinese observations have been redetermined, and osculating orbital elements are given at each apparition from 1910 back to 1404 BC. ; Cometary Science Team Preprint Series, No. 4; 27 pages; Monthly Notices of the Royal Astronomical Society, vol. 197, Nov. 1981, p. 633-646.