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L-type asteroids are relatively uncommon asteroids with a strongly reddish spectrum shortwards of 0.75
These asteroids were described as "featureless" S-types in the Tholen classification. The L-type was formally introduced in the SMASS classification, although previous studies had noted the unusual spectra of two of its members 387 Aquitania and 980 Anacostia.
There are 41 asteroids classified as L-types in the SMASS taxonomy.[1]
Ld-type asteroids
editThe Ld type is a grouping proposed in the SMASS classification for asteroids with an L-like flat spectrum longwards of 0.75
References
edit- ^ "JPL Small-Body Database Search Engine: "spectral type equals L (SMASSII)"". JPL Solar System Dynamics. Retrieved 18 August 2016.