Precise calibration of CCD images with a small field of view. Application to observations of Phoebe

Qing-Yu Peng (1, 2) , Alain Vienne (3, 2) , Y. B. Han (4) , Z. L. Li (5)

1 Joint Laboratory for Optical Astronomy, Chinese Academy of Sciences
2 IMCCE - Institut de Mécanique Céleste et de Calcul des Ephémérides
3 LAL - Laboratoire d'Astronomie de Lille
4 National Astronomical Observatoires-CAS
5 Yunnan Astronomical Observatory, Chinese Academy of Sciences

A precise astrometric calibration method is presented for a CCD image with a small field of view. Its detailed computational formulae are given, and its feasibility and accuracy are tested by the observations of both the star and Phoebe, the 9th satellite of Saturn. This new method can also be applicable to other planetary satellites, asteroids and optical counterparts of extragalactic radio sources.

Domaines: Astrophysique [astro-ph]

Qing-Yu Peng, Alain Vienne, Y. B. Han, Z. L. Li. Precise calibration of CCD images with a small field of view. Application to observations of Phoebe. Astronomy and Astrophysics - A&A, 2004, 424, pp.339-344. ⟨10.1051/0004-6361:20034083⟩. ⟨hal-03730792⟩