Hi! Last december, Matthias Busch and me successfully observed the ESA satellite ISO (Infrared Space Observatory) with a CCD equipped 450 mm f/4.4 Newton telescope at the Heppenheim observatory south of Frankfurt, germany. Matthias now compiled this sequence to an impressive animation. Have a look at http://www.regio-info.de/sternwarte-heppenheim/eng/iso.htm regards, Rainer