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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Earliest Crescent Moon Visibility
From: David Iwancio
Date: 2020 Jan 27, 09:21 -0800
From: David Iwancio
Date: 2020 Jan 27, 09:21 -0800
HMNAO's website organizing "citizen science" to help answer this question, as well as background information on how they make their predictions.