Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89..592m&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 89, April 1984, p. 592-596.
Astronomy and Astrophysics
Astronomy
7
K Lines, Light Curve, Stellar Occultation, Stellar Spectrophotometry, Asteroids, Astronomical Catalogs, Diameters, Visual Photometry
Scientific paper
A value of 216 + or - 10 km for the mean diameter of Ursula is given, based on photometric measurements and observations of the occultation of AG + 39 deg 303, a K-type star of visual magnitude 8.8, by 375 Ursula on November 15, 1982. From the occultation diameter and the absolute visual magnitudes presented, the visual geometric albedo of Ursula is determined to be 0.032, similar to the value typical of C-type asteroids.
Bowell Edward
Dunham David W.
Franz Otto G.
Klemola Arnold
Millis Robert L.
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