Astrex

Astrex is an astronomy library written in Elixir

provides functions to perfom typical astronomy calculations such as:

• coordinates conversion between equatorial and horizontal coordinates
• calculates the position of solar system objects (Moon and planets)
• calculates the magnetic declination to enable finding the "true north"
• includes a full blown NGC and IC objects database with query functionalities

History

• version 0.3.4 - first public release
• version 0.4.0 - update WMM.COF to 2025 release - added 200 brightest stars catalogue

Installation

If available in Hex, the package can be installed by adding astrex to your list of dependencies in mix.exs:

def deps do
  [
    {:astrex, "~> 0.4.0"}
  ]
end

Documentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/astrex.