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celestial longitude中文是什么意思

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用"celestial longitude"造句"celestial longitude"怎么读"celestial longitude" in a sentence"celestial longitude"的同义词

中文翻译手机手机版

  • 黄经:黄道上由春分点算起, 从零度到三百五十九度
  • 天球经度

英文解释

  • (astronomy) the equatorial coordinate specifying the angle, measured eastward along the celestial equator, from the vernal equinox to the intersection of the hour circle that passes through an object in the sky; usually expressed in hours and minutes and seconds; used with declination to specify positions on the celestial sphere; "one hour of right ascension equals fifteen degrees"
    同义词:right ascension, RA,

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