CIRS_to_J2000

Astronomy.CIRS_to_J2000(MJD, UT, raCIRS, decCIRS)

J2000 right ascension and declination from ICRS

:param MJDint

mean Julian day

:param UTfloat

decimal hours

:param ra2000float

radians

:param dec2000float

radians

Returns

tuple (float, float) in hours, degrees