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

Namespace: ASCOM.Astrometry.NOVAS
Assembly: ASCOM.Astrometry (in ASCOM.Astrometry.dll) Version: 6.0.0.0 (6.1.1.2619)

Syntax

C#
public static void EarthTilt(
	double tjd,
	ref double mobl,
	ref double tobl,
	ref double eq,
	ref double dpsi,
	ref double deps
)
Visual Basic
Public Shared Sub EarthTilt ( _
	tjd As Double, _
	ByRef mobl As Double, _
	ByRef tobl As Double, _
	ByRef eq As Double, _
	ByRef dpsi As Double, _
	ByRef deps As Double _
)
Visual C++
public:
static void EarthTilt(
	double tjd, 
	double% mobl, 
	double% tobl, 
	double% eq, 
	double% dpsi, 
	double% deps
)

Parameters

tjd
Type: System..::..Double
TDB Julian date of the desired time
mobl
Type: System..::..Double%
OUT: Mean obliquity of the ecliptic in degrees at 'tjd'.
tobl
Type: System..::..Double%
OUT: True obliquity of the ecliptic in degrees at 'tjd'.
eq
Type: System..::..Double%
OUT: Equation of the equinoxes in seconds of time at 'tjd'.
dpsi
Type: System..::..Double%
OUT: Nutation in longitude in arcseconds at 'tjd'.
deps
Type: System..::..Double%
OUT: Nutation in obliquity in arcseconds at 'tjd'.

Remarks