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 (6.1.1.2619)

Syntax

C#
public void ETilt(
	double JdTdb,
	Accuracy Accuracy,
	ref double Mobl,
	ref double Tobl,
	ref double Ee,
	ref double Dpsi,
	ref double Deps
)
Visual Basic
Public Sub ETilt ( _
	JdTdb As Double, _
	Accuracy As Accuracy, _
	ByRef Mobl As Double, _
	ByRef Tobl As Double, _
	ByRef Ee As Double, _
	ByRef Dpsi As Double, _
	ByRef Deps As Double _
)
Visual C++
public:
virtual void ETilt(
	double JdTdb, 
	Accuracy Accuracy, 
	double% Mobl, 
	double% Tobl, 
	double% Ee, 
	double% Dpsi, 
	double% Deps
) sealed

Parameters

JdTdb
Type: System..::..Double
TDB Julian Date.
Accuracy
Type: ASCOM.Astrometry..::..Accuracy
Selection for accuracy
Mobl
Type: System..::..Double%
Mean obliquity of the ecliptic in degrees at 'JdTdb'.
Tobl
Type: System..::..Double%
True obliquity of the ecliptic in degrees at 'JdTdb'.
Ee
Type: System..::..Double%
Equation of the equinoxes in seconds of time at 'JdTdb'.
Dpsi
Type: System..::..Double%
Nutation in longitude in arcseconds at 'JdTdb'.
Deps
Type: System..::..Double%
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