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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Question to Frank
From: Ken Muldrew
Date: 2005 Apr 22, 09:08 -0600
From: Ken Muldrew
Date: 2005 Apr 22, 09:08 -0600
On 22 Apr 2005 at 6:21, Jim Thompson wrote:
> Also still doing only backyard
> lunars using calculated altitudes instead of an artificial horizon to
> measure all 3 angles.
In fact this was the preferred method for land-based lunars. Take the
lunar distance and then take a time sight using a star in the East or West
rather than using the altitudes of the moon and other body in lieu of the
time sight. Whether this preference was due to the fact that an artificial
horizon limits you to altitudes below 60? or that you get a better time
sight using a rising or setting star I just don't know (or perhaps there
is some other factor that I haven't thought of).
Ken Muldrew.
\----------------------------+---------------------------------+ o_,
O_/ \ Ken Muldrew, PhD | Voice: (403) 220-5976 |
<\__/7
<\__ \ Dept. of Cell Biology | Fax: (403) 270-0617 | |
/
"\ L | University of Calgary | kmuldrew@acs.ucalgary.ca | / /
< +-----------------------+---------------------------------+ / /
Morning coffee recapitulate phylogeny L/
