Forum: Learning to Sail
09-21-2009
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Replies: 7
Views: 727
If what you are looking for is a guide to...
If what you are looking for is a guide to celestial navigation - and for an easily comprehended account of the basic principles with a long-term almanac - search for 'The GPS User's guide to...
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Forum: General Discussion (sailing related)
01-22-2009
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Replies: 13
Views: 1,591
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Forum: General Discussion (sailing related)
01-21-2009
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Replies: 13
Views: 1,591
I have difficulty with the idea that 'personal...
I have difficulty with the idea that 'personal error' can ever be regarded as reducible by mathematical means, although I know that this idea has currency. Fundamentally the various methods of sight...
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Forum: Seamanship
11-06-2008
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Replies: 329
Views: 39,268
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Forum: General Discussion (sailing related)
08-20-2008
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Replies: 19
Views: 1,799
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Forum: Introduce Yourself
05-28-2008
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Replies: 3,072
Views: 229,163
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Forum: General Discussion (sailing related)
05-27-2008
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Replies: 13
Views: 1,591
If you can get your hands on a 1981 edition of...
If you can get your hands on a 1981 edition of Bowditch you will find a partial answer to your question. Basically, and while the ephemeral data for the fixed stars repeats (approximately) each leap...
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