NovasSiderealTime Method

public static short SiderealTime(
	double JdHigh,
	double JdLow,
	double DeltaT,
	GstType GstType,
	Method Method,
	Accuracy Accuracy,
	ref double Gst
)

Public Shared Function SiderealTime ( 
	JdHigh As Double,
	JdLow As Double,
	DeltaT As Double,
	GstType As GstType,
	Method As Method,
	Accuracy As Accuracy,
	ByRef Gst As Double
) As Short

Parameters

JdHigh  Double

High-order part of UT1 Julian date.

JdLow  Double

Low-order part of UT1 Julian date.

DeltaT  Double

Difference TT-UT1 at 'JdHigh'+'JdLow', in seconds of time.

GstType  GstType

0 ... compute Greenwich mean sidereal time; 1 ... compute Greenwich apparent sidereal time

Method  Method

Selection for method: 0 ... CIO-based method; 1 ... equinox-based method

Accuracy  Accuracy

Selection for accuracy

Gst  Double

Greenwich apparent sidereal time, in hours.

Return Value

                     0 ... everything OK
                     1 ... invalid value of 'Accuracy'
                     2 ... invalid value of 'Method'
            > 10, < 30 ... 10 + error from function 'CioRai'
            

Reference