Astrometric studies of the results of a new reduction of old photographic observations of the Saturnian System based on the comparison with the modern theories of satellite motion
- 作者: Kiseleva T.P.1, Vasil’eva T.A.1, Roshchina E.A.1, Izmailov I.S.1
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隶属关系:
- Main (Pulkovo) Astronomical Observatory
- 期: 卷 50, 编号 6 (2016)
- 页面: 402-407
- 栏目: Article
- URL: https://journal-vniispk.ru/0038-0946/article/view/170524
- DOI: https://doi.org/10.1134/S0038094616050014
- ID: 170524
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详细
The paper shows the possibility of increasing the accuracy of the results of photographic observations of Saturn and its moons made in the 1970s and reduced using the old reference star catalogues and semiautomatic measurements. New celestial coordinates of the moons (from the third to the eighth), “satellite minus satellite” relative moon coordinates, and Saturn coordinates by positions of satellites are obtained without measuring its images. The results are stored in the Pulkovo Observatory database on the Solar System bodies and are available online at www.puldb.ru. The efficiency of the reduction method based on digitizing of astronegatives using 21 Mpx Canon digital camera and IZMCCD software is shown. The comparison of new results of old observations with the latest theories of moon motion has revealed a significant increase in satellite positioning accuracy. The investigation of the differences (O–C) of celestial coordinates from satellite positions in their apparent Saturn-centric orbits has revealed a noticeable motion of the differences (O–C) in right ascension depending on their distances from Saturn for all moons.
作者简介
T. Kiseleva
Main (Pulkovo) Astronomical Observatory
编辑信件的主要联系方式.
Email: melon@gao.spb.ru
俄罗斯联邦, St. Petersburg, 196140
T. Vasil’eva
Main (Pulkovo) Astronomical Observatory
Email: melon@gao.spb.ru
俄罗斯联邦, St. Petersburg, 196140
E. Roshchina
Main (Pulkovo) Astronomical Observatory
Email: melon@gao.spb.ru
俄罗斯联邦, St. Petersburg, 196140
I. Izmailov
Main (Pulkovo) Astronomical Observatory
Email: melon@gao.spb.ru
俄罗斯联邦, St. Petersburg, 196140
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