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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Parallactic Retardation
From: Rodney Myrvaagnes
Date: 2004 Jan 29, 13:49 -0500
From: Rodney Myrvaagnes
Date: 2004 Jan 29, 13:49 -0500
On Thu, 29 Jan 2004 14:40:16 +0000, George Huxtable wrote:
>
>It's a poor navigator who could measure Moon altitudes only to a
>quarter-degree, though special circumstances may arise, such as measuring a
>Moon's altitude at night above a shimmering horizon that's lit only by that
>Moonlight.
>
I think the reflection of the moon obliterates the horizon in that
direction and you can't measure the altitude at all. However, people
who have done it more than I tell me that a full moon can provide a
visible horizon for star sights away from the moon's azimuth.
.
Rodney Myrvaagnes NYC
J36 Gjo/a
"Curse thee, thou quadrant. No longer will I guide my earthly way by thee." Capt. Ahab
