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Science 14 March 1986:
Vol. 231. no. 4743, pp. 1276 - 1278
DOI: 10.1126/science.231.4743.1276
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Articles

1981N1: A Neptune Arc?

W. B. HUBBARD 1

1 Lunar and Planetary Laboratory, University of Arizona, Tucson 85721.

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.

Submitted on October 15, 1985
Accepted on January 8, 1985

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Science. ISSN 0036-8075 (print), 1095-9203 (online)