skyview.geometry.csys

Class ICRS

java.lang.Object

skyview.geometry.CoordinateSystem

skyview.geometry.csys.ICRS

All Implemented Interfaces:

java.io.Serializable, Component

public class ICRS
extends CoordinateSystem
implements Component

A class defining the ICRS coordinate system. This should probably be the reference coordinate system, but it differs only very slightly from the J2000 coordinates. We are assuming the the J2000 coordinate system is FK5 based. This may not be true for at the 50 mas level. According to Feissel and Mignard (1998) the rotation angles for the three axes are between the ICRS coordinates and FK5 (-19.9, -9.1, -22.9)

See Also:

Serialized Form

Field Summary

Fields inherited from class skyview.geometry.CoordinateSystem

B1950, Gal, ICRS, J2000

Constructor Summary

Constructors

Constructor and Description
ICRS()

Method Summary

Modifier and Type	Method and Description
java.lang.String	getDescription() Get a description of the object.
java.lang.String	getName() Get the name of this object.
Rotater	getRotater() Return the rotation associated with the coordinate system.

Methods inherited from class skyview.geometry.CoordinateSystem

factory, factory, getSphereDistorter

Methods inherited from class java.lang.Object

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

Constructor Detail

ICRS

public ICRS()

Method Detail

getName

public java.lang.String getName()

Get the name of this object.

Specified by:

getName in interface Component

getDescription

public java.lang.String getDescription()

Get a description of the object.

Specified by:

getDescription in interface Component

getRotater

public Rotater getRotater()

Return the rotation associated with the coordinate system.

Specified by:

getRotater in class CoordinateSystem