Jay Respler said, > Sky & Telescope, 10/99, p142, photo of Orion Nebula. > Has 6 satellites crossing directly over the nebula. 4 are parallel. > 2 are parallel crossing the others at a right angle. > Unusual picture. Who wants to identify them all? Don't have the picture yet. Is there a time, date, observing place given? OTOH, the challenge might be made greater if there weren't such information available, or at least only very approximately. I.e., "Is there a place and time on Earth within the last year that would have produced this picture of the Orion Nebula? If so, where, when, and what were the satellites? What are the important ambiguities, such as exposure time, and how might they be resolved?"