astro

Interface SiderealTiming

All Known Implementing Classes:

SimpleSid

public interface SiderealTiming

An interface defining the calculation of the sidereal time out of a Date object and a Site instance describing the location of the observer on the Earth. Return value should always be in radian.

Field Summary

Fields

Modifier and Type	Field and Description
static double	SOL_TO_SID Conversion factor from solar time to sidereal time.

Method Summary

Modifier and Type	Method and Description
double	getLocalSidereal(Site location, Date time) Returns the local sidereal time in radians for the specified location at the given time.
double	getSiderealGMT(Date time) Returns the local sidereal time at Greenwich, in radians.

Field Detail

SOL_TO_SID

static final double SOL_TO_SID

Conversion factor from solar time to sidereal time.

See Also:

Constant Field Values

Method Detail

getLocalSidereal

double getLocalSidereal(Site location,
                        Date time)

Returns the local sidereal time in radians for the specified location at the given time. The specified time is UTC, as the suggested time base for Date.

getSiderealGMT

double getSiderealGMT(Date time)

Returns the local sidereal time at Greenwich, in radians.