To cite package ‘suncalc’ in publications use:

  Thieurmel B, Elmarhraoui A (2026). _suncalc: Compute Sun Position,
  Sunlight Phases, Moon Position and Lunar Phase_. R package version
  0.5.3, <https://github.com/datastorm-open/suncalc>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {suncalc: Compute Sun Position, Sunlight Phases, Moon Position and Lunar
Phase},
    author = {Benoit Thieurmel and Achraf Elmarhraoui},
    year = {2026},
    note = {R package version 0.5.3},
    url = {https://github.com/datastorm-open/suncalc},
  }
