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Ephemeris Tool

This page is a tool for calculating observing times for periodic-variable stars. Either choose one of the pre-programmed targets from the drop-down menu; or enter the coordinates and ephemeris of the star by hand. Then, 'Create Table' to get a phase/time table spanning the date specified in the date box.

α (JD 2000)

δ (JD 2000)

d

d

Phase HJD JD UTC

Please let me know if you would like other stars added to the list.


Updated 2010-04-13 08:50:03