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Subject: Re: Sextant Error and Whole Horizon Mirrors
From: Aubrey O'Callaghan (ocallaghan@XXX.XXX)
Date: Thu Jul 11 2002 - 08:03:56 EDT
Bruce,
Yes please. If you already have them in "soft format" I would appreciate
having them.
The weekend is coming up so should have a some time to check this out. I
used this telescope to take star sights on my Atlantic crossing, but having
used the normal scope for sun sights, and being used to a normal scope it
was quite difficult to bring star to horizon. I had to consciously
countermand what my brain was telling me to do.
My Russian sextant is not WW 1 it is a CHO-T Year 1983 serial no 83376.
Aubrey
At 22:32 10/07/02, you wrote:
>Aubrey-
>
>If you are interested, I'll send along instructions from one of the old
>manuals explaining how to adjust that inverting 'scope. I think it would be
>interesting make use of it.
>
>Just a wild guess, but I have the notion inverting 'scopes went out of
>fashion around WW I, shortly after lunar distances were dropped from the
>Almanac. Seems like those full view horizon mirrors didn't appear until the
>last half of the twentieth century. Does anyone know?
>
>Bruce
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