On Tue 2003-07-01T20:34:58 +0100, Markus Kuhn hath writ:
> Newcomb's formula for the geometric mean longitude of the Sun is

not really valid more than 200 years into the future.
Please don't use Newcomb for that.

You want to use something intended to match integrations that have
moved much farther into the future.

For a start, see Simon et al., Astron. Astrophys 282, 663-683 (1994).

--
Steve Allen          UCO/Lick Observatory       Santa Cruz, CA 95064
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