siderealTime {oce} | R Documentation |
Convert a POSIXt time to a sidereal time, using the method in Chapter 7 of Meeus (1982). The small correction that he discusses after his equation 7.1 is not applied here.
siderealTime(t)
t |
a time, in POSIXt format, e.g. as created by
|
A sidereal time, in hours in the range from 0 to 24.
Dan Kelley
Meeus, Jean, 1982. Astronomical formuae for Calculators. Willmann-Bell. Richmond VA, USA. 201 pages
Other things related to astronomy: eclipticalToEquatorial
,
equatorialToLocalHorizontal
,
julianCenturyAnomaly
,
julianDay
, moonAngle
,
sunAngle
t <- ISOdatetime(1978, 11, 13, 0, 0, 0, tz="UTC") print(siderealTime(t))