The Revised Pole Model and New Observations of Triton
Langue
en
Communication dans un congrès
Ce document a été publié dans
Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias), Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias), VI Reunión de Astronomía Dinámica en Latinoamérica (ADeLA 2014) (Eds. Katherine Vieira, William van Altena & René A. Méndez) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 46, pp. 97--98 (2015), 2014-09-29, Santiago de Chile. 2015-10, vol. 46, p. 97
Résumé en anglais
We used 3108 Earth-based astrometric observations from the Natural Satellite Data Center (NSDC) over more than 30 years time span from 1975 to 2006 for determining the epoch state vectors of the Neptunes largest satellite ...Lire la suite >
We used 3108 Earth-based astrometric observations from the Natural Satellite Data Center (NSDC) over more than 30 years time span from 1975 to 2006 for determining the epoch state vectors of the Neptunes largest satellite Triton. In integrating the perturbation equation, the barycentric frame of Neptune-Triton system is adopted, and in considering the oblateness perturbation due to Neptune, a revised pole model describing the precession of the Neptune's pole is used in our calculation. Moreover, a total of 1095 new observed positions of Triton were collected during 46 nights of observations in 2007, 2008 and 2009. We compared our observations to two ephemerides of Triton and most of the available planetary ephemerides of Neptune.< Réduire
Mots clés en anglais
astrometry
planets and satellites: Triton
Origine
Importé de halUnités de recherche