To cite package ‘celestial’ in publications use:

Robotham A (2026). celestial: Collection of Common Astronomical Conversion Routines and Functions. R package version 1.5.7, https://github.com/asgr/celestial.

Corresponding BibTeX entry:

  @Manual{,
    title = {celestial: Collection of Common Astronomical Conversion
      Routines and Functions},
    author = {Aaron Robotham},
    year = {2026},
    note = {R package version 1.5.7},
    url = {https://github.com/asgr/celestial},
  }