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    Equinox, eggs and other questions
    From: Rob Gendreau
    Date: 2002 Mar 16, 08:05 -0800

    I always assumed the equinox was when the sun crossed the equator, but
    since taking a Cel Nav class I realize my naivete, and now assume that
    it must be more complicated than that ;) For instance, is it when the
    center of the sun crosses, or the lower limb, or what? A quick glance
    through my Nautical Almanac didn't reveal an answer.
    I figure the equinox will be between 19-00 and 20-00 UT (about 19-30 it
    looks like) since that's when the sun's declination hits zero. If I just
    fiddle with the increment tables to get a 0 deg dec, that's the equinox?
    Oh, eggs. In Iran the new year begins on the equinox (helluv practical,
    those ancient Persians). Tradition has it that at the moment of the
    equinox you can stand an egg on end. Not to raise the specter of
    scientific rationalism vs. folklore, but big bets are riding on this in
    my office. Video evidence is being demanded. So an accurate time for the
    equinox is essential.
    And Happy New Year to all the Iranians out there!!

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