File Coverage

lib/Astro/Montenbruck.pm
Criterion Covered Total %
statement 8 8 100.0
branch n/a
condition n/a
subroutine 3 3 100.0
pod n/a
total 11 11 100.0


line stmt bran cond sub pod time code
1             package Astro::Montenbruck;
2 1     1   171205 use 5.22.0;
  1         4  
3 1     1   6 use strict;
  1         2  
  1         20  
4 1     1   5 use warnings;
  1         2  
  1         53  
5              
6             our $VERSION = 0.03;
7              
8             1;
9             __END__
10              
11              
12             =pod
13              
14             =encoding UTF-8
15              
16             =head1 NAME
17              
18             Montenbruck - Lightweight Ephemeris
19              
20             =head1 DESCRIPTION
21              
22             Library of astronomical calculations, based on
23             I<"Astronomy On The Personal Computer"> by I<O.Montenbruck> and I<T.Phleger>,
24             I<Fourth Edition, Springer-Verlag, 2000>.
25              
26             There are many astronomical libraries available in the public domain. While
27             giving accurate results, they often suffer from lack of convenient API,
28             documentation and maintainability. Most of the source code is written in C, C++
29             or Java, and not dynamic languages. So, it is not easy for a layman to customize
30             them for her custom application, be it an online lunar calendar, or tool for
31             amateur sky observations. This library is an attempt to find a middle-ground
32             between precision on the one hand and compact, well organized code on the other.
33              
34             =head2 Accuracy
35              
36             As authors of the book state, they have tried to obtain an accuracy that is
37             approximately the same as that found in astronomical yearbooks.
38              
39             "The errors in the fundamental routines for determining the coordinates
40             of the Sun, the Moon, and the planets amount to about 1″-3″."
41              
42             -- Introduction to the 4-th edition, p.2.
43              
44              
45              
46             =head1 MODULES
47              
48             =over
49              
50             =item * L<Astro::Montenbruck::MathUtils> — Core mathematical routines.
51              
52             =item * L<Astro::Montenbruck::Time> — Time-related routines.
53              
54             =item * L<Astro::Montenbruck::Ephemeris> — Positions of celestial bodies.
55              
56             =item * L<Astro::Montenbruck::CoCo> — Coordinates conversions.
57              
58             =item * L<Astro::Montenbruck::Nutation> — Nutation and obliquity of ecliptic.
59              
60             =back
61              
62              
63             =head1 AUTHOR
64              
65             Sergey Krushinsky, C<< <krushi at cpan.org> >>
66              
67             =head1 COPYRIGHT AND LICENSE
68              
69             Copyright (C) 2010-2019 by Sergey Krushinsky
70              
71             This library is free software; you can redistribute it and/or modify
72             it under the same terms as Perl itself.
73              
74             =cut