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    Re: Advice concerning sextants
    From: Bill Morris
    Date: 2010 Feb 23, 19:18 -0800

    George and Ken

    My understanding of the "full view" or "whole horizon" mirrors is that they transmit well towards the red end of the spectrum (sky at dawn and dusk) and reflect well towards the blue end of the spectrum (moon, stars).

    Thus, you could, say, receive 80 percent of the light from the horizon and 80 percent of the light from the body (Idon't know what the actual amounts are). It is perhaps stretching the normal use of the language to say that this adds up to more than 100 percent, as the light is coming from different sources, but maybe this wasn't what Ken meant.

    Bill Morris
    New Zealand.
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