Astro:...nbruck(3pm)

💫 Astro::Montenbruck — Lightweight Ephemeris 🪐

okay so bestie, welcome to the manual page for Astro:...nbruck (that's the Astro::Montenbruck fam, section 3pm in the User Contributed Perl Documentation and honestly it ate 💅). Sit down, grab a boba, and let's get into it ✨

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🌸 NAME 🌸

Montenbruck — Lightweight Ephemeris 🎀

🦋 DESCRIPTION 🦋

So this is a library of astronomical calculations, and it's based mainly on "Astronomy On The Personal Computer" by O.Montenbruck and T.Phleger, Fourth Edition, Springer-Verlag, 2000. like, an actual book, iconic 👑

Here's the vibe: there are many astronomical libraries in the public domain, no cap. And yeah, they give accurate results, but lowkey they suffer from lack of convenient API, documentation and maintainability 😭. Most of the source code is written in C, C++ or Java, and not dynamic languages. So it is not easy for a layman to customize them for her custom application, be it an online lunar calendar, or tool for amateur sky observations. This library is an attempt to find a middle-ground between precision on the one hand and compact, well organized code on the other 🫶 — that's the whole main character energy of the project, periodt.

⭐ Accuracy ⭐

As authors of the book state, they have tried to obtain an accuracy that is approximately the same as that found in astronomical yearbooks. fr fr 🧚

"The errors in the fundamental routines for determining the coordinates of the Sun, the Moon, and the planets amount to about 1″-3″."

and that quote is straight from the -- Introduction to the 4-th edition, p.2. ✨ (yes the 1″-3″ is arcseconds, she's precise like that)

💜 MODULES 💜

• Astro::Montenbruck::MathUtils — Core mathematical routines. 🔥
• Astro::Montenbruck::Time — Time-related routines. ⏰
• Astro::Montenbruck::Ephemeris — Positions of celestial bodies. 🌌
• Astro::Montenbruck::CoCo — Coordinates conversions. 🗺️
• Astro::Montenbruck::NutEqu — Nutation and obliquity of ecliptic. 🌈
• Astro::Montenbruck::RiseSet — Rise, set, transit and twilight times. 🌅
• Astro::Montenbruck::Lunation — Lunar phases. 🌙
• Astro::Montenbruck::SolEqu — Solstices and equinoxes ☀️

🌷 HOW TO CONTRIBUTE 🌷

The project is also hosted on Github. Please, visit <https://github.com/skrushinsky/astro-montenbruck>. literally go look 👀

You may contribute to the project by many different ways — starting from refining and correcting its documentation, especially if you are a native English speaker, and ending with improving the code base. Any kind of testing and suggestions are welcome 💖 (like, every single one, we're not picky, we're grateful 🫶).

You may follow the standard Github procedures or, in case you are not comfortable with them, just send your suggestions to the author by email. no pressure bestie, whatever works for u 💅

👑 AUTHOR 👑

Sergey Krushinsky, "<krushi at cpan.org>" 💌

🎀 COPYRIGHT AND LICENSE 🎀

Copyright (C) 2010-2022 by Sergey Krushinsky

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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k that's the whole page, you're officially educated 💀✨ this was perl v5.42.2, dated 2026-02-15, and you can find this icon under Astro:...nbruck(3pm) — mwah, go stargaze 🍓🔭💜