D-type asteroid

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D-type asteroids have a very low albedo and a featureless reddish electromagnetic spectrum.[citation needed] It has been suggested that they have a composition of organic-rich silicates, carbon and anhydrous silicates, possibly with water ice in their interiors.[citation needed] D-type asteroids are found in the outer asteroid belt and beyond; examples are 152 Atala, and 944 Hidalgo as well as the majority of Jupiter trojans. It has been suggested that the Tagish Lake meteorite was a fragment from a D-type asteroid, and that the Martian moon Phobos is closely related.[1]

The Nice model suggests that D-type asteroids may have originated in the Kuiper belt.[2]

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References[edit]

  1. ^ [1] Space.com via Yahoo News, Jan 19, 2014, "Potato-Shaped Mars Moon Phobos May Be a Captured Asteroid"
  2. ^ William B. McKinnon, 2008, "On The Possibility Of Large KBOs Being Injected Into The Outer Asteroid Belt". American Astronomical Society, DPS meeting #40, #38.03 [2]