NGC 6995 :蝙蝠星雲
NGC 6995: The Bat Nebula
來源:Mike Taivalmaa|發表日期:2024-09-04
你能看到蝙蝠嗎? 它就在這幅東側面紗星雲的宇宙特寫中出沒。 面紗星雲本身是一個大型超新星殘餘物,是一顆大質量恆星死亡爆炸後不斷膨脹的碎片雲。面紗星雲大致呈圓形,在天鵝座方向的天空中佔地近 3 度,而被非正式地稱為蝙蝠星雲的NGC 6995 只佔地 1 / 2 度,大約相當於月球的表面大小。這相當於 "面紗 "估計距離的 12 光年,距離地球 1400 光年,令人欣慰。在透過窄帶濾光片記錄的合成影像資料中,殘餘物中氫原子的發射顯示為紅色,氧原子的強烈發射顯示為藍色。當然,在 "面紗 "的西部還有另一個季節性現象:女巫的掃帚星雲。 教師和學生:在課堂上使用 APOD 的想法
原文:Can you see the bat? It haunts this cosmic close-up of the eastern Veil Nebula. The Veil Nebula itself is a large supernova remnant, the expanding debris cloud from the death explosion of a massive star. While the Veil is roughly circular in shape and covers nearly 3 degrees on the sky toward the constellation of the Swan (Cygnus), NGC 6995, known informally as the Bat Nebula, spans only 1/2 degree, about the apparent size of the Moon. That translates to 12 light-years at the Veil's estimated distance, a reassuring 1,400 light-years from planet Earth. In the composite of image data recorded through narrow band filters, emission from hydrogen atoms in the remnant is shown in red with strong emission from oxygen atoms shown in hues of blue. Of course, in the western part of the Veil lies another seasonal apparition: the Witch's Broom Nebula. Teachers & Students: Ideas for using 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!
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