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NOVAS31ETilt Method
Computes quantities related to the orientation of the Earth's rotation axis at Julian date 'JdTdb'.

Namespace: ASCOM.Astrometry.NOVAS
Assembly: ASCOM.Astrometry (in ASCOM.Astrometry.dll) Version: 6.0.0.0 (6.3.0.2839)
Syntax
public void ETilt(
	double JdTdb,
	Accuracy Accuracy,
	ref double Mobl,
	ref double Tobl,
	ref double Ee,
	ref double Dpsi,
	ref double Deps
)

Parameters

JdTdb
Type: SystemDouble
TDB Julian Date.
Accuracy
Type: ASCOM.AstrometryAccuracy
Selection for accuracy
Mobl
Type: SystemDouble
Mean obliquity of the ecliptic in degrees at 'JdTdb'.
Tobl
Type: SystemDouble
True obliquity of the ecliptic in degrees at 'JdTdb'.
Ee
Type: SystemDouble
Equation of the equinoxes in seconds of time at 'JdTdb'.
Dpsi
Type: SystemDouble
Nutation in longitude in arcseconds at 'JdTdb'.
Deps
Type: SystemDouble
Nutation in obliquity in arcseconds at 'JdTdb'.
Remarks
Values of the celestial pole offsets 'PSI_COR' and 'EPS_COR' are set using function 'cel_pole', if desired. See the prolog of 'cel_pole' for details.
See Also