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Astro::Montenbruck::Ephemeris::Planet::Pluto - Pluto.
use Astro::Montenbruck::Ephemeris::Planet::Pluto; my $planet = Astro::Montenbruck::Ephemeris::Planet::Pluto->new(); my @geo = $planet->position($t); # apparent geocentric ecliptical coordinates
Child class of Astro::Montenbruck::Ephemeris::Planet, responsible for calculating Pluto position.
The coordinates are first calculated relative to the fixed ecliptic of 1950, and then transformed to the equinox of date. This method is nesessary because of the high inclination of Pluto's orbit.
The routine is applicable only between years 1890 and 2100.
The reason for this is that the series expansion used was not derived from perturbation theory, but from a Fourier analysis of a numerically integrated ephemeris covering this period of time. Even a few years before 1890 or after 2100, the errors in the calculated coordinates grow very sharply, reaqching values of more than 0.5 arc-degrees. — O.Montenbruck, Th.Pfleger "Astronomy on the Personal Computer"
See description in Astro::Montenbruck::Ephemeris::Planet.
<krushi at cpan.org>
Copyright (C) 2009-2021 by Sergey Krushinsky
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.