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    Re: query
    From: Michael Wescott
    Date: 2002 Aug 21, 14:42 -0400

    Mitch B Burrill writes:
    > If I am at lat1, long1,  and go XXX nm at TC YYY, What is the exact
    > formula from spherical trigonometry to get lat2, long2 ?
    I would argue that the problem is not sufficiently well specified.
    Is TC=YYY merely the initial course for a Great Circle trip during
    which the course will generally vary as the trip progresses. Or is TC
    to remain constant for the whole trip, i.e. a rhumb line course? Or
    something else altogether?
            Mike Wescott

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