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post #20 of Old 04-02-2012
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Re: Celestial Navigation: Nautical Almanac

Nice. That's what practice is for.

By the way, if Procyon's computed LHA is 35858.4' then I think it makes more sense to round up to 359 for the purpose of indexing Pub 249, no? That means you should use the row above.

Also, you need to interpolate between 5 and 6 of declination. If your computed declination has 11.4' attached, and d = 60', then you need to add 11.4' to Hc, which brings you up to Hc = 4311.4'. This is a lot closer to your Ho of 4238.2'.

s/v Laelia - 1978 Pearson 365 ketch
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