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Geology of Charon : ウィキペディア英語版 | Geology of Charon
The geology of Charon are the characteristics of the surface, crust, and interior of Pluto's moon Charon. Charon's diameter is —just over half that of Pluto. Charon is sufficiently massive to have collapsed into a spheroid under its own gravity. ==History== Mutual eclipses of Pluto and Charon in the 1980s allowed astronomers to take spectra of Pluto and then the combined spectrum of the pair. By subtracting Pluto's spectrum from the total, astronomers were able to spectroscopically determine the surface composition of Charon. The northern regions of Charon are composed partially of hydrocarbons and tholins, whereas the lower latitudes are more diverse in composition.
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「Geology of Charon」の詳細全文を読む
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