NGC 602 :牡蠣星團
NGC 602: Oyster Star Cluster
![image](https://apod.nasa.gov/apod/image/2407/Ngc602_Hubble_960.jpg)
發表日期:2024-07-02
雲層看似牡蠣,恆星看似珍珠,但請看遠處。在大約 20 萬光年遠的衛星星系小麥哲倫雲的外圍,有一個有著 500 萬年曆史的星團 NGC 602 。在這張令人驚歎的哈勃影像中,NGC 602 星團被其誕生時的氣體和塵埃外殼所包圍,錢德拉天文臺(Chandra Observatory)的 X 射線影像和斯皮策望遠鏡(Spitzer Telescope)的紅外影像為其增色不少。奇妙的脊和後掠氣體強烈表明,來自 NGC 602 巨大年輕恆星的高能輻射和衝擊波侵蝕了塵埃物質,並引發了恆星形成過程,使其遠離星團中心。按照小麥哲倫雲的估計距離,這張照片的跨度大約為 200 光年,但是在這張清晰的照片中還可以看到各種誘人的背景星系。這些背景星系距離 NGC 602 有數億光年,甚至更遠。
原文:The clouds may look like an oyster, and the stars like pearls, but look beyond. Near the outskirts of the Small Magellanic Cloud, a satellite galaxy some 200 thousand light-years distant, lies this 5 million year old star cluster NGC 602. Surrounded by its birth shell of gas and dust, star cluster NGC 602 is featured in this stunning Hubble image, augmented in a rollover by images in the X-ray by the Chandra Observatory and in the infrared by Spitzer Telescope. Fantastic ridges and swept back gas strongly suggest that energetic radiation and shock waves from NGC 602's massive young stars have eroded the dusty material and triggered a progression of star formation moving away from the star cluster's center. At the estimated distance of the Small Magellanic Cloud, the featured picture spans about 200 light-years, but a tantalizing assortment of background galaxies are also visible in this sharp view. The background galaxies are hundreds of millions of light-years -- or more -- beyond NGC 602.
※ 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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