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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Seeing stars and planets in the daytime.
From: Jim Thompson
Date: 2004 May 29, 16:51 -0300
From: Jim Thompson
Date: 2004 May 29, 16:51 -0300
Aha -- That explains why I have been finding Polaris during end of civil twilight on the dark horizon through the sextant's telescope so much more easily than up in the sky with the naked eye. Thanks George. (Sorry about the run-on sentence. Long, long day at the office.) Jim Thompson -------------------- > -----Original Message----- > From: George Huxtable > Because any star, viewed > in any telescope, is no more than an infinitesimal point of > light, then the > extra light collected by using a telescope with a large objective produces > a correspondingly brighter pinpoint in the field of view. But the > brightness of the sky background is not enhanced in the same way. That's > why a telescope allows faint stars to be picked up earlier, after sunset.
