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单词 merak
释义

Merak

enUK

Me·rak

M5238000 (mē′răk′)n. The second brightest star in the constellation Ursa Major, approximately 79 light years from Earth. It is one of the seven stars that form the Big Dipper and aligns with Dubhe to point to Polaris.
[Medieval Latin, from Arabic marāqq (al-dubb al-'akbar), the loins (of the Great Bear), from marāqq, tender areas of the lower abdomen, loins, from raqqa, to be thin, tender; see rqq in Semitic roots.]

Merak

enUK

Merak

(me -rak) (β UMa) One of the seven brightest stars in the Plough and one of the two Pointers. mv : 2.37; Mv : 0.7; spectral type: A0mA1 IV-V; distance: 19 pc.
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更新时间:2025/2/28 19:15:56