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    Re: Infrared sextant
    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?  




    On Aug 24, 2014, at 10:42, "Noell Wilson" <NoReply_Wilson@fer3.com> wrote:

    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

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