HI there, There is a large set of open source Astronomy programs already available for Linux , visit www.openastro.com for a list. It should be fairly easy to repackage most of these as rpm and deb archives (everything is .tgz presently). Cheers, Dave Mills -- ================================== P.O. Box 44070, Tucson AZ 85733 Tel: +1 (520) 822 5221 Fax: +1 (520) 822 5223 WWW: http://www.randomfactory.com/ ==================================