NAME
Astro::Coords::Planet - coordinates relating to planetary motion
SYNOPSIS
$c = new Astro::Coords::Planet( 'uranus' );DESCRIPTION
This class is used by Astro::Coords for handling coordinates for planets..
METHODS
Constructor
- new
-
Instantiate a new object using the supplied options.
$c = new Astro::Coords::Planet( 'mars' );Returns undef on error.
Accessor Methods
- planet
-
Returns the name of the planet.
- name
-
For planets, the name is always just the planet name.
General Methods
- array
-
Return back 11 element array with first element containing the planet name.
This method returns a standardised set of elements across all types of coordinates.
- type
-
Returns the generic type associated with the coordinate system. For this class the answer is always "RADEC".
This is used to aid construction of summary tables when using mixed coordinates.
It could be done using isa relationships.
- stringify
-
Stringify overload. Simple returns the name of the planet in capitals.
- summary
-
Return a one line summary of the coordinates. In the future will accept arguments to control output.
$summary = $c->summary(); - _apparent
-
Return the apparent RA and Dec (in radians) for the current coordinates and time.
NOTES
Usually called via Astro::Coords.
REQUIREMENTS
Astro::SLA is used for all internal astrometric calculations.
AUTHOR
Tim Jenness <t.jenness@jach.hawaii.edu>
COPYRIGHT
Copyright (C) 2001-2002 Particle Physics and Astronomy Research Council. All Rights Reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.