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Philosophaie
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Julian Ephemeris Date (Teph) is equal to JDj2000 + Ephemeris Time (ET)(in seconds) divided by Seconds per day.
Teph = j2000 + ET / spd
How do you find Ephemeris Time?
deltat = ET-UT = 24.349s + 72.3165s * T 29.949s * T + 1.821 * B ...
http://www.digplanet.com/wiki/Ephemeris_time
How far off is Julian Date from Julian Ephemeris Date?
Teph = j2000 + ET / spd
How do you find Ephemeris Time?
deltat = ET-UT = 24.349s + 72.3165s * T 29.949s * T + 1.821 * B ...
http://www.digplanet.com/wiki/Ephemeris_time
How far off is Julian Date from Julian Ephemeris Date?
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