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- local mean solar time: UT+east longitude
- local mean sidereal time: Greenwich mean sidereal time+east longitude
- local apparent sidereal time: local mean sidereal time+equation of equinoxes:
[local apparent sidereal time]-[apparent right ascension]
- local hour angle: [local apparent sidereal time]-[apparent right ascension]
= [local mean sidereal time]-([apparent right ascension]-[equation of equinoxes]).
© 1996-2007 Eric W. Weisstein
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