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(91133) 1998 HK151 : ウィキペディア英語版 | (91133) 1998 HK151
(better known as 1998 HK151) is a plutino with a 2:3 resonance with Neptune. It was discovered on April 28, 1998, by the Mauna Kea Observatory. has the lowest, and thus bluest measured B-V color index of any TNO. On May 24, 2000, set a TNO record low B-V of 0.51. Reddening of the spectrum is caused by cosmic irradiaton by ultraviolet radiation and charged particles. Becoming bluer in the spectrum is caused by impact collisions exposing the interior of an object. Based on an absolute magnitude (H) of 7.62, is estimated to be between 85 – 190 km in diameter. == References ==
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