Functions for converting dates and times relevant to astronomical computation References: [1] Meeus, Jean. Astronomical Algorithms 2nd Ed. Willman-Bell, Inc. 1998.
Functions for converting dates and times relevant to astronomical computation References: [1] Meeus, Jean. _Astronomical Algorithms_ 2nd Ed. Willman-Bell, Inc. 1998.
(centuries-since-j2000 dt)
Convert date string or org.joda.time.DateTime to centuries since J2000.0 [1] Eqn (12.1)
Convert date string or org.joda.time.DateTime to centuries since J2000.0 [1] Eqn (12.1)
(day-of-year dt)
Get integer day of year from org.joda.time.DateTime [1] Ch.7
Get integer day of year from org.joda.time.DateTime [1] Ch.7
(decimal-day dt)
Get decimal day of month from org.joda.time.DateTime
Get decimal day of month from org.joda.time.DateTime
(julian-day dt)
Convert date string or org.joda.time.DateTime to Julian Day [1] Eqn (7.1)
Convert date string or org.joda.time.DateTime to Julian Day [1] Eqn (7.1)
(td->ut dt)
Convert Dynamical Time String or org.joda.time.DateTime to UTC
Convert Dynamical Time String or org.joda.time.DateTime to UTC
(ut->td dt)
Convert date string or org.joda.time.DateTime to Dynamical Time
Convert date string or org.joda.time.DateTime to Dynamical Time
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