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F-class asteroid

A Dictionary of Astronomy | 1997 | 447 words | Copyright

F-class asteroid A subclass of the C-class asteroids. Its members have low albedos (0.03–0.07), and a featureless reflectance spectrum, flat to slightly bluish over the wavelength range 0.3–1.1 μm. F-class asteroids are distinguished from class C by having a weak to non-existent ultraviolet absorption feature. Members of this class include (142) Polana, diameter 52 km, and (213) Lilaea, diameter 104 km.

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