com.ibm.icu.impl

Class CalendarAstronomer.Equatorial

java.lang.Object

com.ibm.icu.impl.CalendarAstronomer.Equatorial

Enclosing class:

CalendarAstronomer

public static final class CalendarAstronomer.Equatorial
extends Object

Represents the position of an object in the sky relative to the plane of the earth's equator. The Right Ascension specifies the position east or west along the equator, relative to the sun's position at the vernal equinox. The Declination is the position north or south of the equatorial plane.

Note that Equatorial objects are immutable and cannot be modified once they are constructed. This allows them to be passed and returned by value without worrying about whether other code will modify them.

See Also:

CalendarAstronomer.Ecliptic, CalendarAstronomer.Horizon

Field Summary

Fields

Modifier and Type	Field and Description
double	ascension The right ascension, in radians.
double	declination The declination, in radians.

Constructor Summary

Constructors

Constructor and Description
Equatorial(double asc, double dec) Constructs an Equatorial coordinate object.

Method Summary

Modifier and Type	Method and Description
String	toHmsString() Return a string representation of this object with the right ascension measured in hours, minutes, and seconds.
String	toString() Return a string representation of this object, with the angles measured in degrees.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ascension

public final double ascension

The right ascension, in radians. This is the position east or west along the equator relative to the sun's position at the vernal equinox, with positive angles representing East.

declination

public final double declination

The declination, in radians. This is the position north or south of the equatorial plane, with positive angles representing north.

Constructor Detail

Equatorial

public Equatorial(double asc,
                  double dec)

Constructs an Equatorial coordinate object.

Parameters:

asc - The right ascension, measured in radians.

dec - The declination, measured in radians.

Method Detail

toString

public String toString()

Return a string representation of this object, with the angles measured in degrees.

Overrides:

toString in class Object

Returns:

a printable representation of this object.

toHmsString

public String toHmsString()

Return a string representation of this object with the right ascension measured in hours, minutes, and seconds.