Astronomical Time Keeping

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Home → Science → Astronomy → Calendars

Calendars

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http://www.maa.mhn.de/Scholar/times.html

Astronomical Time Keeping
Astronomical Time Keeping Introduction Siderial Time Solar Time Universal Time (UT), Greenwich Time Timezones Atomic Time Ephemeris Time, Dynamical Time Scales (TDT, TDB) Julian Day Numbers Astronomical Calendars References Introduction: Time keeping and construction of calendars are among the oldest branches of astronomy. Up until very recently, no earth-bound method of time keeping could match ...