sunpy.sun.sun.true_obliquity_of_ecliptic(t='now') [edit on github]

Deprecated since version 1.0: This is scheduled for removal in 2.1.

Returns the true obliquity of the ecliptic, using the IAU 2006 definition. Correction for nutation is included.


t (tuple, str, pandas.Timestamp, pandas.Series, pandas.DatetimeIndex, datetime.datetime,, numpy.datetime64, numpy.ndarray, astropy.time.Time) – Time to use in a parse-time-compatible format


The nutation model is IAU 2000A nutation with adjustments to match IAU 2006 precession.