| 单词 | 光年 |
| 释义 | 〔megaparsec〕One million parsecs.百万秒差距（表示天体间距离的单位3.26光年）〔Antares〕A giant, red, double and variable star, the brightest in the constellation Scorpio, about 424 light-years from Earth.心宿二，大火，天蝎座α星：一颗巨大的，可变化的红色双星，是天蝎座最亮的星，距地球约424光年〔Capella〕A double star in Auriga, the brightest star in the constellation, approximately 46 light-years from Earth.五车二：御夫座中的一颗双星，是该星座中最亮的一颗星，距地球约46光年〔Aldebaran〕A double star in the constellation Taurus, 68 light-years from Earth, and one of the brightest stars in the sky.毕宿五，金牛座α星：位于金牛座的一颗双星，离地球68光年，为天空中最亮的星之一〔Altair〕A very bright, variable, double star in the constellation Aquila, approximately 15.7 light-years from Earth.牵牛星，河鼓二：天鹰座的一颗非常明亮的，易变的双星，距地球约15.7光年〔Deneb〕The brightest star in the constellation Cygnus, approximately 1,630 light-years from Earth.天津四，天鹅α星：在天鹅座最亮的一颗恒星，距地球大约有1,630光年〔Canopus〕A star, 650 light-years from Earth, in the constellation Carina. It is the second-brightest star in the sky.老人星：船底星座中一颗恒星，距地球650光年。是天空中第二颗最亮的星〔Auriga〕A constellation in the Northern Hemisphere near Lynx and Perseus that contains the bright star Capella, which is 42 light-years from Earth. Also called Charioteer 御夫星座：北天球一星座，位于天猫星座和英仙星座附近，五车二是其中最明亮的一颗星，距离地球四十二光年 也作 Charioteer〔Achernar〕A star in the constellation Eridanus that is one of the brightest stars in the sky and is 114 light-years from Earth.阿却尔纳星：波江星座中一颗星，为天空中最亮的星之一，距离地球114光年〔Arcturus〕The fourth brightest star in the sky and the brightest star in the constellation Boötes, approximately 36 light-years from Earth.大角星，牧夫座：天空中第四亮的星星，是牧夫星座最亮的星，距地球约36光年〔galaxy〕Any of numerous large-scale aggregates of stars, gas, and dust that constitute the universe, containing an average of 100 billion (1011) solar masses and ranging in diameter from 1,500 to 300,000 light-years. Also called nebula 星系，星群：组成天体的大量大规模的星、气或尘埃的聚集物，包括平均100(1011)亿的太阳质量，直径从1,500到300,000光年 也作 nebula〔Castor〕A double star in the constellation Gemini, the brightest star in the group, approximately 46 light-years from Earth.北河二：双子座中的一颗双星，是这组星中最明亮的一颗，距地球约46光年〔Fomalhaut〕The brightest star in the constellation Piscis Austrinus, 24 light-years from Earth.南鱼嘴：南鱼座中最亮的一颗星，距地球24光年〔parsec〕A unit of astronomical length based on the distance from Earth at which stellar parallax is one second of arc and equal to 3.258 light-years, 3.086×1013 kilometers, or 1.918 × 10 13 miles. 秒差距：天文学自地球起的距离单位，星视差为1角秒，等于3.258光年，3.086×1013公里，或1.918×10 13英里 〔Denebola〕A star in the constellation Leo, approximately 43 light-years from Earth.德尼波拉星：狮子座的一颗恒星，距地球大约43光年〔Sirius〕A star in the constellation Canis Major, the brightest star in the sky, approximately 8.6 light-years distant from Earth. Also called Dog Star ,Sothis 天狼星：大犬星座中的一颗星，是天空中最明亮的星，距地球大约8.6光年 也作 Dog Star,Sothis〔Spica〕A spectroscopic binary star, 245 light-years from Earth, one of the brightest stars in the sky and the brightest star in the constellation Virgo.角宿一：一种用分光镜观察的距地球245光年双星，是天空中最亮的恒星之一，也是处女座中最亮的星星〔Andromeda〕A constellation in the Northern Hemisphere between Lacerta and Perseus and south of Cassiopeia. It contains a large spiral galaxy visible to the naked eye. The spiral is 1.84 × 105 light-years from Earth. 仙女座：北半球的一个星座，在蝎虎座和英仙座之间，仙后座以南，包括肉眼可见的大片旋涡星云，其旋涡星云距地球为1.84×105光年 〔Betelgeuse〕A bright-red intrinsic variable star, 527 light-years from Earth, in the constellation Orion.参宿四：位于猎户星座的一颗鲜红色固有变星，距地球572光年 |
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