天鵝座與孤樹
Cygnus and the Solitary Tree

來源:2025 Horacio Lander / AstroHoracio
Text:
Keighley Rockcliffe
(NASA
GSFC,
UMBC CSST,
CRESST II)|發表日期:2026-03-18
在西班牙瓜達拉哈拉的一片寧靜草地上,一棵孤樹佇立,其剪影映襯著夜空中如火焰般升起的天鵝座星區。這幅深邃的夜空景象是由多張曝光照片合成而成的,展現了人眼無法單獨捕捉到的豐富亮度與色彩。 天鵝座的視直徑超過滿月的千倍,其活躍的恆星形成區將夜空染成一片火海——在那裡,氣體和塵埃雲在重力作用下坍縮,直至核聚變點燃,新恆星由此誕生。這些恆星電離了周圍的氫氣,使其發出深紅色的光芒,而星際塵埃的細絲則吸收了部分光線,在天空中投下深邃的陰影。 天鵝座堪稱天體寶庫,其中尤以面紗星雲、新月星雲和鵜鶘星雲最為著名,還有首個被證實的黑洞——天鵝座X- 1 。天鵝座持續為科學界帶來新發現,包括由錢德拉X 射線天文臺構建的全新天鵝座環三維模型。 近乎超空間:隨機APOD 生成器
原文:A lone tree stands in a quiet meadow in Guadalajara, Spain, silhouetted against the Cygnus region rising above like flames in the night sky. This deep night skyscape is a composite of exposures that reveals a range of brightness and color human eyes can't quite see on their own. Spanning over a thousand times the angular size of the full moon, Cygnus sets the sky afire with active star formation where clouds of gas and dust collapse under gravity until nuclear fusion ignites and new stars are born. These stars ionize the surrounding hydrogen gas, causing it to glow crimson, while tendrils of interstellar dust absorb some of that light and cast dark shadows across the sky. Cygnus is a trove of celestial treasures, notably the Veil, Crescent, and Pelican nebulae, as well as Cygnus X-1, the first confirmed black hole. Cygnus continues to yield fresh science, including a new three-dimensional model of the Cygnus Loop made possible by the Chandra X-ray Observatory. Almost Hyperspace: Random APOD Generator
※ 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。