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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: "Almanaque Nautico Simplificado"
From: Frank Reed
Date: 2024 Jan 16, 11:49 -0800
From: Frank Reed
Date: 2024 Jan 16, 11:49 -0800
Bela, you quoted:
"Its results should agree with the positions generated by the United States Naval Observatory and their Astronomical Almanac to within 0.0005 arcseconds (half a “mas” or milliarcsecond)."
Well that's nothing! My own almanac data is precise to a nanoarcsecond. That's a million times better than "mas". The data as displayed are usually rounded to one arcseccond or a tenth of an arcminute, but down inside... oh yeah, baby... nanoarcseconds!!
I'm kidding, of course, but perhaps you see my point. Claims are only claims.
Frank Reed
PS: A nanoarcsecond? That's the size of a nickel (US 5 cent coin, diameter 2.1cm) seen on the planet Neptune by an observer on the Earth.
