UBV photometry of small and distant asteroids |
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Authors: | B. Zellner L. Andersson J. Gradie |
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Affiliation: | Lunar and Planetary Laboratory, The University of Arizona, Tucson, Arizona 85721, USA |
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Abstract: | Photoelectric magnitudes and colors on the UBV system are presented for 65 minor planets, including four Mars crossers, six Trojans, and main-belt objects down to 6 km in diameter. The Trojans all have very similar colors not characteristics of the main-belt population. A paucity of S-type asteroids at the smallest diameters, predicted from trends seen at larger sizes, is not observed. The newly available color data for small objects ranging from 1.0 to 5.2 AU in heliocentric distance show the main belt to be a transition zone between predominantly silicate and carbonaceous compositions. |
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