* Web pages uses latitude, longitude, time zone, and other parameters from the customized call to this web site (see [Configure Web Site] link).

Note: US Naval Observatory tables are currently offline.  See https://www.usno.navy.mil/USNO/astronomical-applications


Note: Many formulas had to be converted through two different programming languages. If you find any formula errors, please send an

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Copyright 2005 Muskegon Astronomical Society, Inc.

This web page was last updated 06/09/21