This page describes an image 鯨魚座星圖
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Diagram caption:
鯨魚座及其明亮恆星與周邊星座示意圖。從頂部開始沿順時針方向,鯨魚座周邊的星座依次為:雙魚座、寶瓶座、玉夫座、天爐座、波江座、金牛座和白羊座。鯨魚座緊鄰黃道南側。從地球看來,太陽以一年為週期在天球上移動,所經過的路徑稱為黃道,在圖中以藍色實線標注。雖然太陽本身並不會經過鯨魚座,但是月亮和太陽系中的其他行星有時會出現在鯨魚座。鯨魚座中的芻藁增二是一顆著名的變星。在十一個月的光變週期裡,這顆紅巨星的亮度會產生六百倍的變化。
鯨魚座橫跨天赤道,因此在一年中的某些時候,整個地球都能看到鯨魚座的一部分。在赤道地區和南北兩個半球的溫帶地區都能看到整個鯨魚座。鯨魚座在北半球的深秋和南半球的暮春夜晚最適宜觀測。
棒旋星系M77、旋渦星系NGC 247和矮不規則星系IC 1613位於鯨魚座,它們在圖中均以紅色橢圓標注。
該圖的縱軸為赤緯,橫軸為赤經,方向為上北下南左東右西。圖中標注的恆星大小對應其視星等——衡量天體視亮度的標準,較大的圓點代表著較亮的恆星。圖中的希臘字母標注著星座中最亮的恆星。這些恆星按亮度排序,最亮的一般被標記為α星,第二亮的一般為β星,等等,不過這種字母排序並不總是和實際亮度排序完全一致。圖中虛線標注的是國際天文學聯合會劃定的星座邊界,綠色實線則是一種常見的星座形象連線。需要注意的是,在實際觀測時,這些邊界與連線都不會出現在天空中。
Diagram credit: 國際天文學聯合會天文教育辦公室(IAU OAE)根據國際天文學聯合會和《天空與望遠鏡》的原文改編. Credit Link
Diagram translation status: Not yet approved by a reviewer
Diagram translators: An automated transliteration from the simplified Chinese translation by - Bao Lizhuo
Diagram license: Creative Commons 姓名標示 4.0 國際 (CC BY 4.0) Creative Commons 姓名標示 4.0 國際 (CC BY 4.0) icons
Related glossary terms:
天球坐標
, 星座
, 視星等
, 變星
, 赤經(RA)
, 赤緯
, 黃道
, 黃道十二宮
Categories:
Naked Eye Astronomy
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In Other Languages
英語: Cetus Constellation Map義大利語: Mappa della costellazione della Balena
西班牙語: Mapa de la constelación de Cetus
簡體中文: 鲸鱼座星图
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