NGC 6357 大質量恆星大教堂
NGC 6357: Cathedral to Massive Stars
發表日期：2025-09-23
一顆普通恆星的質量有多大？ 根據距離、亮度和標準太陽模型的估算，開放星團 Pismis 24 中的一顆恆星的質量是太陽的 200 多倍，是已知質量最大的恆星之一。 這顆恆星是最亮的天體，位於韋伯太空望遠鏡用紅外光拍攝的圖片底部中心附近的中央空腔中。 作為對比，哈勃太空望遠鏡拍攝的翻轉影像也是以可見光拍攝的。然而，仔細觀察這些影像後發現，皮斯米斯 24 - 1 的亮度並非來自一顆恆星，而是至少來自三顆恆星。 組成恆星的質量仍然接近 100 個太陽質量，是目前記錄中質量較大的恆星之一。 在影像底部，恆星仍在相關的發射星雲 NGC 6357 中形成。靠近中心的高能恆星看起來就像一座哥特式大教堂，它們正在破繭而出，照亮一個壯觀的繭。 教師和學生：在課堂上利用 APOD 的想法
原文：How massive can a normal star be? Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, making it one of the most massive stars known. This star is the brightest object located in the central cavity near the bottom center of the featured image taken with the Webb Space Telescope in infrared light. For comparison, a rollover image from the Hubble Space Telescope is also featured in visible light. Close inspection of the images, however, has shown that Pismis 24-1 derives its brilliant luminosity not from a single star but from three at least. Component stars would still remain near 100 solar masses, making them among the more massive stars currently on record. Toward the bottom of the image, stars are still forming in the associated emission nebula NGC 6357. Appearing perhaps like a Gothic cathedral, energetic stars near the center appear to be breaking out and illuminating a spectacular cocoon. Teachers & Students: Ideas for Utilizing APOD in the Classroom
※ 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。