Observations of the Eclipse of Iapetus in the Shadows of the Globe, Crape Ring, and Bright Ring of Saturn, 1889 November 1

@inproceedings{BarnardObservationsOT,
  title={Observations of the Eclipse of Iapetus in the Shadows of the Globe, Crape Ring, and Bright Ring of Saturn, 1889 November 1},
  author={E. E. P. Barnard}
}