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Hi Mark, welcome to List. Unless I missed something would you be so
kind as to supply the data for sight reduction? Thanks much!
Mike Burkes
626-833-1521

On Jan 28, 12:08�am, Watermark  wrote:
> I've recently taught myself Celestial Navigation from library books
> but I still have some newbie questions. I thought I was doing fairly
> well using an artificial horizon - accuracy to within 6NM last week -
> but today after taking sun sights at 10.00 and 14.00 all my LOPs ran
> parallel. I reduced 8 different sights and double checked everything
> but the same result. I had read that a 4 hour spread would be enough
> but today my LHAs and Zn's all came out similar. My DR Long is 121W. I
> can only deduce that taking sights of the sun at a similar altitude at
> 10.00 and 14.00 caused the LHA to be too close despite 4 hours time
> difference? Is this correct and will this always occur taking sights
> at this time if not moving? Excuse the naivety but like I said I am
> still a beginner.
> Many thanks,
> Mark
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