Arcturus.とは 意味・読み方・使い方

発音

• IPA^(key): /ɑɹkˈtjʊəɹəs/

固有名詞

Arcturus

1. (astronomy) A bright yellow-orange star in the constellation Boötes; Alpha (α) Boötis. It is the fourth-brightest star in the night sky.
   • 2008, BioWare, Mass Effect, Redwood City: Electronic Arts, →ISBN, →OCLC, PC, scene: Stations: Arcturus Station Codex entry:

     When humanity activated the Charon Mass Relay in 2149, it led to Arcturus, 36 light years from Sol, Earth's sun. Arcturus is the third brightest star seen from Earth. It is an ancient red giant from the generation born before Sol.

派生語

• Arcturian

Latin

語源

From Ancient Greek Ἀρκτοῦρος (Arktoûros), from ἄρκτος (árktos, “bear”) +‎ οὖρος (oûros, “guard”).

発音

• (Classical) IPA^(key): /arkˈtuː.rus/, [ärkˈt̪uːrʊs̠]
• (Ecclesiastical) IPA^(key): /arkˈtu.rus/, [ärkˈt̪uːrus]

固有名詞

Arctūrus m (genitive Arctūrī); second declension

1. the star Arcturus
2. the constellation Boötes

   Synonym: Bootes

語形変化

Second-declension noun.

参考

• arctos