. The seminar is supported by the grant of Federal Programm "Integration" . at the conference hall . of the Sternberg Astronomical Institute, . at 14 00 on Friday, December 11 , 1998 . (39-th seminar) . 1. S.Ibadov . " Generation of X-ray in Comets " . 45 min. 2. News . The secretary of the seminar - M.E. Prokhorov . Access free (code 1256) . Abstracts and INTERNET Subscribe possible at . http://xray.sai.msu.su/sciwork/eseminars.html .