...at these ranges (>547 km and 200m), will I be able to distinguish the 2 separate objects? my gut tells me yes. stephan szyman chicago IL USA 41.6840N, 87.7000W; 188m asl ++++++++++ I would like to take a stab at this just for fun. Using this applet http://www.1728.com/angsize.htm I came up with about 1 minute of arc at 547 km distance and 0.183 km separation. I believe that is right at the limit of resolution for human vision, and that under bright conditions. 7x binoculars would be a best bet. However since atmospheric effects are a major problem I think it's anybody's guess as to whether you will be successful. Tom Iowa USA ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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