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4197 Morpheus : ウィキペディア英語版 | 4197 Morpheus
(4197) Morpheus (provisional designation 1982 TA) was discovered on October 11, 1982, by Eleanor F. Helin and Eugene Shoemaker. It is an Apollo, Mars- and Venus-crosser asteroid, only 1.7 km in diameter. In 1996, astronomers at the Goldstone Observatory analysed it using radar delay-Doppler imaging. The resultant images are not very clear, but they show that (4197) 1982 TA has a roughly triangular shape, and a 3-hour rotation period. It's named after Morpheus. ==References== 〔
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