NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2013 Mar 2, 18:55 -0800
Here is a Martelli reduction for Rigel:
4956 19' 16.2"
4948 7' 0.7'
_____ ________
9904 26' 16.9"
7582
_____
17486 52* 4' (t)
198*10.5' GHA
_________
250* 14.5'
360
__________
Lon. 109* 45.5' E
Greg Rudzinski
[NavList] Re: A practice round of stars
From: Robert Bernecky
Date: 2 Mar 2013 16:29
Here are two "time-sights" using Jupiter and the Moon LL using the modified Martelli tables. I did it the way you are supposed to, scribbled on a piece of paper...
The average of the two sights is 109º 45' E which matches well with the fix obtained by finding the intersection of the LOPs. Having done this a few times, I am thinking that a time-sight reduction is much easier than intercepts/bearings. Granted we don't have an accurate latitude until we get a meridian sight, but this is way faster... until we switch to GPS.
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