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Re: Eclipse Lunar
From: Peter Hakel
Date: 2017 Aug 22, 14:45 -0700
From: Peter Hakel
Date: 2017 Aug 22, 14:45 -0700
Using the ephemerides from Frank Reed’s lunar calculator (as shown by Greg Rudzinski) in the ld_prec.xls spreadsheet (“precomputed lunar distance”) I obtain 27.1’ for the geocentric and 31.8’ for the topocentric lunar distance. Since the sum of the two semidiameters is 31.9’, I calculate that the Moon “bites into” the Sun disk by 0.1’. Neither refraction nor Earth’s oblateness are included in this calculation, and HP of Sun is taken to be zero.
Greg, congratulations on obtaining these amazing images!
Peter Hakel
https://www.navigation-spreadsheets.com/lunar.html#ld_prec
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