Altair is not as bright as Vega and Deneb.
牛郎星不如织女星和天津四明亮.
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Deneb is northernmost star in the Summer Triangle.
天津四是“夏季大三角”中最北边的一颗星.
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Altair is as bright as Vega and Deneb.
牵牛星与织女和天津四相比,光亮度还是略为逊色.
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As our Earth turns tonight , Vega, Deneb and Altair travel westward across the sky.
当地球上夜幕降临时, 织女星, 天津四以及牛郎星穿过长空向西移动.
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I use a star like Deneb or Altair as they are not too bright ( like Vega ).
当你在户外看星空,亮星在高倍下调整后,还需要作进一步的校正.
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Vega , the brightest Summer Triangle star, shines to the west ( or right ) of Deneb.
织女星, 夏季大三角中最亮的一颗星, 闪耀在天津星的西面.
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Extend the Albireo to Deneb line in either direction to soar along the galactic plane ( equator ) .
延天鹅星向天津四画一条直线并向任一方向延伸,你会看到一只在银道面上展翅翱翔的 天鹅.
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Three stars cross the body near Deneb to form what is known as the Northern Cross.
靠近天津四的三颗星星交叉于天鹅躯干就是我们所熟知的北十字.
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