Angular diameter has nothing to do with it. After all, stars have a small angular diameter but are easy to see. Now if the microsat had a bright light on it... Randy -----Original Message----- From: Fred Valcho [mailto:fvalcho@yahoo.com] Sent: Friday, September 18, 2009 12:45 PM To: seesat-l@satobs.org Subject: Re: one other sat from soyuz launch seen Yea, I agree, the human eye cannot discern an object of this size at this distance. It is impossible. Just as we can't see any of the landing vehicles on the moon's surface. The arch angle view of the human eye is not small enough for this level of visual acuity. But I wish! Fredv ----- Original Message ---- From: Kevin Fetter <kfetter@yahoo.com> To: seesat-l@satobs.org Sent: Friday, September 18, 2009 5:37:59 PM Subject: Re: one other sat from soyuz launch seen --- On Fri, 9/18/09, Greg Roberts <grr@telkomsa.net> wrote: > Since you have seen it, or > possibly the larger object, you can judge for yourself as to how > correct the following statement is: > > "people will be able to see it with the naked eye every evening as it > crosses South Africa between 8 and 9 pm!!!!!" I personally don't think, they be seeing it with just the eye, when it passes by. > ouch- a microsat at 500 kms visible to the naked eye ? in > sun-synchronous orbit clear of earths shadow every night ?? Of course not. Kevin __________________________________________________________________ The new Internet Explorer(r) 8 - Faster, safer, easier. Optimized for Yahoo! Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/ ------------------------------------------------------------------------ - Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html ------------------------------------------------------------------------ - Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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