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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: OpenCPN Celestial Navigation Plugin
From: Paul Hirose
Date: 2025 Feb 22, 21:36 -0800
From: Paul Hirose
Date: 2025 Feb 22, 21:36 -0800
> *From: *Antoine Couëtte > *Date: *2025 Feb 20, 17:24 -0800 > > Yes, changing the sign of IC > leads us to the very same results now. > > I could not figure out why our results did not agree before. Since there is no standard "signage" for index correction, is there any way to unambiguously communicate a sextant observation? Perhaps it's best to to say "after correcting for index error and dip, Ha (apparent altitude) is ...". See "correction vs. error" in September 2024 archive. -- Paul Hirose sofajpl.com
