昴星團：七姐妹星團
Pleiades: The Seven Sisters Star Cluster
來源：Kamil Fiedosiuk｜發表日期：2026-02-23
你見過昴星團嗎？即便見過，恐怕也從未見過如此宏大清晰的景象。作為天空中最著名的星團之一，昴星團的明亮恆星即使在光汙染嚴重的城市深處也能肉眼可見。但在黑暗地點進行長時間曝光拍攝時，環繞昴星團的塵埃雲便清晰可見。 這張來自波蘭博裡圖霍爾斯基的 18 小時長曝光作品，覆蓋了數倍於滿月大小的天空區域。昴星團又名七姐妹星團或M 45 ，位於金牛座方向約 400 光年處。 一個流傳甚廣的傳說（帶有現代色彩）稱：自星團命名以來，其中一顆較亮的恆星逐漸黯淡，如今肉眼可見的姐妹星僅剩六顆。但實際可見的昴星團恆星數量可能多於或少於七顆，這取決於周圍天空的黑暗程度以及觀測者視力的清晰度。星空驚喜：在你的生日當天（ 1995 年後），天文圖片每日一圖（APOD）展示了哪幅作品？
原文：Have you ever seen the Pleiades star cluster? Even if you have, you probably have never seen it as large and clear as this. Perhaps the most famous star cluster on the sky, the bright stars of the Pleiades can be seen with the unaided eye even from the depths of a light-polluted city. With a long exposure from a dark location, though, the dust cloud surrounding the Pleiades star cluster becomes very evident. The featured 18-hour exposure, taken from Bory Tucholskie, Poland covers a sky area several times the size of the full moon. Also known as the Seven Sisters and M45, the Pleiades lies about 400 light years away toward the constellation of the Bull (Taurus). A common legend with a modern twist is that one of the brighter stars faded since the cluster was named, leaving only six of the sister stars visible to the unaided eye. The actual number of Pleiades stars visible, however, may be more or less than seven, depending on the darkness of the surrounding sky and the clarity of the observer's eyesight. Sky Surprise: What picture did APOD feature on your birthday? (after 1995)
※ 本文由萌芽機器人自動轉貼自每日一天文圖（Astronomy Picture of the Day，APOD），原文為英文，正體中文是透過 DeepL 翻譯及 OpenCC 進行自動處理，內容僅供參考，若有任何錯誤之處還請見諒！
關於每日一天文圖：每日一天文圖網站是美國國家航空暨太空總署與密西根理工大學提供的服務，網站每天提供一張影像或圖片，並由天文學家撰寫扼要說明其特別之處。