单词 | Arcturus |
释义 | Word Frequency Arcturus(ɑːkˈtjʊərəs) noun the brightest star in the constellation Boö tes: a red giant. Visual magnitude: –0.4; spectral type:K2III; distance: 37 light years Derived forms Arcturian (Arcˈturian) adjective Word origin C14: from Latin, from Greek Arktouros, from arktos bear + ouros guard, keeper |
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