cds.astro
Class Supergal

java.lang.Object
  cds.astro.Astroframe
      cds.astro.Supergal

All Implemented Interfaces:

java.io.Serializable

public class Supergal
extends Astroframe

The Supergalactic frame is defined such (0,0) represents the direction toward the center of the Local Group of galaxies. The Supergalactic frame is defined by reference to the Galactic System.

Author:

Francois Ochsenbein (CDS)

See Also:

Serialized Form

Field Summary

static java.lang.String	class_name Name of this frame
static double[][]	supergal Rotation matrix to move from Galactic to Supergalactic.

Fields inherited from class cds.astro.Astroframe

base_epoch, ed_lat, ed_lon, epoch, hms, ICRSmatrix, name, precision

Constructor Summary

Supergal()
Instanciate an Supergal frame.

Method Summary

double[][]

toICRSmatrix() Defines the rotation matrix to rotate to ICRS

Methods inherited from class cds.astro.Astroframe

equals, fromICRS, fromICRS, setFrameEpoch, setICRSmatrix, toICRS, toICRS, toString, toString

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

class_name

public static java.lang.String class_name

Name of this frame

supergal

public static final double[][] supergal

Rotation matrix to move from Galactic to Supergalactic.

Constructor Detail

Supergal

public Supergal()

Instanciate an Supergal frame. Default epoch is B1950.

Method Detail

toICRSmatrix

public double[][] toICRSmatrix()

Defines the rotation matrix to rotate to ICRS

Specified by:

toICRSmatrix in class Astroframe

Returns:

the 3x3 rotation matrix to convert a position in ICRS frame = (supergal * gal_2000)^t