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・ D. C. Jefferson
・ D. C. Kizhakemuri
・ D-T oil field
・ D-term
・ D-Terminal
・ D-threo-aldose 1-dehydrogenase
・ D-threonine aldolase
・ D-topia Entertainment
・ D-town
・ D-town records
・ D-Tox
・ D-Trick
・ D-tryptophan N-acetyltransferase
・ D-tryptophan N-malonyltransferase
・ D-TV
D-type asteroid
・ D-type Triplex (New York City Subway car)
・ D-Unit
・ D-value
・ D-value (microbiology)
・ D-value (transport)
・ D-Var
・ D-VHS
・ D-War
・ D-Wave
・ D-Wave Systems
・ D-Wave Two
・ D-Wayne
・ D-Xhird
・ D-xylose 1-dehydrogenase


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D-type asteroid : ウィキペディア英語版
D-type asteroid
D-type asteroids have a very low albedo and a featureless reddish electromagnetic spectrum. It has been suggested that they have a composition of organic-rich silicates, carbon and anhydrous silicates, possibly with water ice in their interiors. 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.〔() Space.com via Yahoo News, Jan 19, 2014, "Potato-Shaped Mars Moon Phobos May Be a Captured Asteroid"〕
The Nice model suggests that D-type asteroids may have originated in the Kuiper belt.〔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 ()〕 There are 46 D-type asteroids which include 3552 Don Quixote, 944 Hidalgo, 624 Hektor, and 10199 Chariklo.〔
==Examples==
A list of the first 10 asteroids that are D-type.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「D-type asteroid」の詳細全文を読む



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