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Published May 1981 | public
Journal Article

The diameter and albedo of 1943 Anteros


We report the results of broadband visual and infrared photometry of the Apollo-Amor asteroid 1943 Anteros during its 1980 apparition. By means of a radiometric model, we calculate a diameter of 2.3 ± 0.2 km and a visual geometric albedo of 0.13 ± 0.03. The albedo and reflectance spectrum of Anteros imply that it is a type S asteroid. Thus, Anteros may have a silicate surface similar to other Apollo-Amor asteroids as well as some stony-iron meteorites.

Additional Information

© 1981 Elsevier Inc. Received 15 January 1981, Revised 20 April 1981. We wish to thank the IRTF for the necessary observing time and support on Manna Kea. J. Carrasco, (G. Hoover, C. Kaminski, R. Koehler, D. Matson, and B. Schaefer assisted with the infrared observations. J. Degewij and L. Lebofsky provided useful discussions. The observations at Palomar were supported by a NASA grant. This paper presents the results of one phase of research carried out at the Jet Propulsion Laboratory, California Institute of Technology, under Contract NAS 7-100.

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