R-type asteroid
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Wikipedia
R-type asteroids are moderately bright, relatively uncommon inner-belt asteroids that are spectrally intermediate between the V and A-type asteroids. The spectrum shows distinct olivine and pyroxene features at 1 and 2 micrometres, with a possibility of plagioclase. Shortwards of 0.7 μm the spectrum is very reddish.
The IRAS mission has classified 4 Vesta, 148 Gallia, 246 Asporina, 349 Dembowska, 571 Dulcinea and 937 Bethgea as type R; however, the re-classification of Vesta, the V archetype, is debatable.
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Last updated on Thursday February 07, 2008 at 13:18:28 PST (GMT -0800)
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Last updated on Thursday February 07, 2008 at 13:18:28 PST (GMT -0800)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation
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