Документ взят из кэша поисковой машины. Адрес оригинального документа : http://jet.sao.ru/~goray/rxj0909/rxj0909.htm
Дата изменения: Fri Jul 22 11:49:21 2005
Дата индексирования: Mon Oct 1 23:09:49 2012
Кодировка:
Поисковые слова: annular solar eclipse

Observations of the New Eclipsing UGSU variable RXJ0909.8+1849 (GY Cnc)

The period of this variable was first determined by Tony Vanmunster (Center of Backjard Astrophysics). We have taken the observations with CCD ST-7 and 60-cm reflector of SAI Crimean station. Figure shows the eclipses seen against background of degressive level of light.

The longest set was taken at night of 2000 February 12 including 291 R 60 second long frames with the magnitude limit of 18. Summing all these frames in a single one I have taken a "deep sight" of this region having the limit of 21.7R. The effective exposition is 4 h. 51 m. Look at this frame!