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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Frank Reed
Date: 2017 Mar 2, 13:25 -0800
Four hours ago I took a series of Sun sights around local noon. Here's the raw data:
16:35:30, 41° 13.0'
16:40:55, 41° 20.9'
16:48:02, 41° 25.8'
16:55:39, 41° 28.8'
17:00:38, 41° 30.0'
17:02:46, 41° 28.7'
17:06:22, 41° 27.3'
17:12:25, 41° 23.3'
17:19:18, 41° 15.2'
17:23:19, 41° 09.0'
Times are UT. Altitudes are Sun LL, as usual. Height of eye 24 feet. Index error was about 3.8' on arc. Can you determine my latitude and longitude from these sights? How many different ways can you come up with to get a fix from these observations? Incidentally, my "northing" speed was zero, but the Sun is northbound at about 1 knot this time of year.
I was able to shoot the Moon and Venus, too, so there were ample opportunities to get a celestial fix today. The weather was chilly and blustery. Great waves! See photos.
Frank Reed
