To cite package ‘exoplanets’ in publications use:

Littlefield T (2022). exoplanets: Access NASA's Exoplanet Archive Data. R package version 0.2.3, https://github.com/ropensci/exoplanets.

Corresponding BibTeX entry:

  @Manual{,
    title = {exoplanets: Access NASA's Exoplanet Archive Data},
    author = {Tyler Littlefield},
    year = {2022},
    note = {R package version 0.2.3},
    url = {https://github.com/ropensci/exoplanets},
  }