NAME

Astro::Catalog::Item::Morphology - Information about a star's morphology.

SYNOPSIS

$morphology = new Astro::Catalog::Item::Morphology( );

DESCRIPTION

Stores information about an astronomical object's morphology.

METHODS

Constructor

new

Create a new instance of an Astro::Catalog::Item::Morphology object.

$morphology = new Astro::Catalog::Item::Morphology( );

This method returns a reference to an Astro::Catalog::Item::Morphology object.

Accessor Methods

ellipticity

The ellipticity of the object.

position_angle_pixel

Position angle using the pixel frame as a reference. Measured counter- clockwise from the positive x axis.

position_angle_world

Position angle using the world coordinate system as a reference. Measured east of north.

major_axis_pixel

Length of the semi-major axis in units of pixels.

minor_axis_pixel

Length of the semi-minor axis in units of pixels.

major_axis_world

Length of the semi-major axis in units of degrees.

minor_axis_world

Length of the semi-minor axis in units of degrees.

area

Area of the object, usually by using isophotal techniques, in square pixels.

fwhm_pixel

FWHM of the object in pixels.

fwhm_world

FWHM of the object in arcseconds.

PRIVATE METHODS

_configure

Configure the object.

REVISION

$Id: Morphology.pm,v 1.4 2006/06/05 21:03:23 cavanagh Exp $

COPYRIGHT

Copyright (C) 2004 Particle Physics and Astronomy Research Council. All Rights Reserved.

AUTHORS

Brad Cavanagh <b.cavanagh@jach.hawaii.edu>