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单词 Alpha Aquilae
释义

Alpha Aquilae

中文百科

河鼓二 Altair

(重定向自Alpha Aquilae)
Altair

河鼓二,即著名的“牛郎星”,“天鹰座α”(Altair),又叫“牵牛星”或“大将军”,在日文中称作“彦星”。

排名全天第十二的明亮恒星,白色。在星空观测中,是夏季大三角中的一角。它和天鹰座β、γ星的连线正指向织女星。西方称呼此星为Altair,是阿拉伯语的“飞翔的大鹫(Al nasr-l'tair:النسر الطائر)”的缩写。

位置:赤经19时48.3分,赤纬8度44分。

英语百科

Altair 河鼓二

(重定向自Alpha Aquilae)
Altair

Altair (α Aquilae, α Aql) is the brightest star in the constellation Aquila and the twelfth brightest star in the night sky. It is currently in the G-cloud—a nearby accumulation of gas and dust known as an interstellar cloud. Altair is an A-type main sequence star with an apparent visual magnitude of 0.77 and is one of the vertices of the Summer Triangle (the other two vertices are marked by Deneb and Vega). It is 16.7 light-years (5.13 parsecs) from Earth and is one of the closest stars visible to the naked eye.

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更新时间:2025/6/19 11:31:20