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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: For which celestial bodies is it relevant to display the lunar distance?
From: Jorrit Visser
Date: 2018 May 26, 11:13 -0700
From: Jorrit Visser
Date: 2018 May 26, 11:13 -0700
Dear Tony,
Ah, I completely overlooked the nonlinear change of the lunar distance when the moon passes close by a celestial body, like Venus on May 17th. Now a lunar distance is not shown anymore in my tables if the maximum error using a linear interpolation exceeds 0.1' of arc, as compared to a quadratic interpolation (I will put an explanation on my website).
Regarding the proportonal logarithms, I have created a one-hour interval proportional logarithm table, see attachment and also CelNav.nl.
Thank you very much for your suggestions!
Best regards,
Jorrit
