释义 |
S-type asteroids S-type asteroids A common asteroid type found in the inner asteroid belt, having moderate albedos (0.1 to 0.2) and reddish spectra. Given their composition (metallic nickel-iron, combined with iron and magnesium silicates), they could be the parent bodies of the stony-iron meteorites. (433) Eros is a prime example of an S-type asteroid. |