To cite package ‘MoonShineR’ in publications use:

  Poon L, Jenks I, Crampton W (2026). _MoonShineR: Predict Moonlight,
  Sunlight, and/or Twilight Ground Illuminance_. R package version
  1.2.0, <https://CRAN.R-project.org/package=MoonShineR>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {MoonShineR: Predict Moonlight, Sunlight, and/or Twilight Ground Illuminance},
    author = {Lok Poon and Ian T. Jenks and William G. R. Crampton},
    year = {2026},
    note = {R package version 1.2.0},
    url = {https://CRAN.R-project.org/package=MoonShineR},
  }