NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Dale Lichtblau
Date: 2022 Mar 20, 15:08 -0700
Frank, I assume "subSun point" is "Sun's Geographic Position"?
The sky over Reston, Virginia (38° 56' N 77° 19' W) this morning was generally cloudy, but the sun did poke through briefly at 15:37:00 UT. Using my C&P Horizon and C&P's bubble horizon, my first sight was 44° 51.8'. Using Hien Nguyen's wonderful StarStruck Navigation app (entering only date and time, Hs, IC, and AP), I had an intercept of 1.098' away. Pure dumb luck, I'm sure! Two subsequent shots were 42.875' toward, and 7.924' away. Hien's little app will even plot the LOPs, but in this case told me that the LOPs were almost parallel and would not provide a good fix.
The C&P bubble horizon is VERY difficult to use, and exceedingly frustrating. And the bubble horizon attachment seems to extend further from the frame than the regular telescope. (Intentionally so?)
This morning's equinox falling just two days after the last full moon ("lying on its side" last Friday evening) means that Easter will be "late" this year, falling on the first Sunday after the NEXT full moon 16 April.
