Technical facts about this news release: About the Object Object Name: GRO J1655-40 Object Description: Black Hole X-ray Binary Position (J2000): R.A. 16h 54m 00.14s Dec. -39° 50' 44.9" Constellation: Scorpius Distance: 3,200 - 9,600 light-years (1000 - 3000 parsecs) About the Data Instrument: WFPC2 Exposure Date(s): April 1995, June 2001 Exposure Time: 33 minutes Principal Astronomers: I.F. Mirabel (CEA & IAFE/CONICET), R. Mignani (ESO), I. Rodriguez (CEA), J.A. Combi (Argentine Institute for Radio Astronomy), L.F. Rodriguez (UNAM), F. Guglielmetti (MPE) About this Release Release Date: November 18, 2002 Filters: F675W (R) Release Credit: ESA, NASA and F. Mirabel (French Atomic Energy Commission and Institute for Astronomy and Space Physics/Conicet of Argentina)