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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Infrared sextant
From: Jackson McDonald
Date: 2014 Aug 24, 18:56 -0400
From: Jackson McDonald
Date: 2014 Aug 24, 18:56 -0400
Could FLIR technology be applied to a sextant scope to enable one to view the natural horizon after dark, thereby extending one's ability to take celestial sights at night, beyond the usual periods of nautical twilight?
Interesting old sextant on eBay:
HISTORIC MACNEIL ALL WEATHER SEXTANT Ca1932 - CASED EXCELLENT CONDITION Built by Hughes, it apparently concentrated infrared energy and allowed sun shots on overcast days.
Regards
Noell
