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Re: Selenelion, something new in eclipses
From: Frank Reed
Date: 2014 Oct 5, 14:12 -0700
From: Frank Reed
Date: 2014 Oct 5, 14:12 -0700
Ha! Gary, you beat me to it by seconds.
From the article:
"Then again, sighting a selenelion might be problematic feat. Twenty-five years ago, in the August 1989 issue of Sky & Telescope, Bradley Schaefer, an astronomer who extensively studied the visibility of the moon when it was low in the sky, noted that the full moon only becomes visible when it is about 2 degrees up and the sun is about 2 degrees below the horizon."
From here in New England, the Moon will be setting while fully eclipsed right at sunrise. This would be an opportunity to see that apparent violation of geometry (only apparent). But of course, this is actually impossible to see. The fully-eclipsed Moon is completely invisible when it's so close to the horizon.
-FER
