Coordinates of the centre of the figure of lunar marginal zone

Abstract

On the basis of large-scale star-calibrated lunar photographs the rectangular selenoequatorial coordinates of the centre of the figure of lunar marginal zone have been obtained with reference to its mass centre, the position of which has been computed by the ephemerides j = 2 and LURE-2. A new definition method of lunar mass centre coordinates by photographic observation in system j = 2 and LURE-2 is proposed.

The results of an accurate analysis of EAO charts of the Moon marginal zone constructed on the basis of lunar occultations

“…Large-scale star calibrated lunar photographs were obtained on Zelenchuk mountain station of the Kazan University in 1970-1975(Habibullin and Rizvanov, 1984. For the construction charts of the Moon marginal zone 127 plates with the best images of the Moon and stars, obtained at various significances of the optical librations of the Moon have been chosen.…”

“…The method of the reduction of plates for the determination of the plate constants is presented in detail in papers by Habibullin et al (1974) and Habibullin & Rizvanov (1984).…”