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Moon’s SD
From: Jim Rives
Date: 2020 Jan 7, 06:02 -0800

I have read that in arriving at the Moom’s semidameter you multiply the horizontal parallax, HP, by a factor of .2724. How does this get you the SD?

Be kind... I was an accountant so my math sort of peters out around pre-calculus.

Thanks.

Jim Rives

43N 71W

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