1981N1: A Neptune Arc?

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An object in the vicinity of Neptune detected in 1981 by simultaneous stellar occultation measurements at observatories near Tucson, Arizona, was interpreted as a new Neptune satellite. A reinterpretation suggests that it may have instead been a Neptune arc similar to one observed in 1984. The 1981 object, however, did not occult the star during simultaneous observations at Flagstaff, Arizona. This result constrains possible arc geometries.

Original languageEnglish (US)
Pages (from-to)1276-1278
Number of pages3
Issue number4743
Publication statusPublished - 1986


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Cite this

Hubbard, W. B. (1986). 1981N1: A Neptune Arc? Science, 231(4743), 1276-1278.