條狀螺旋星系 NGC 5335
Barred Spiral Galaxy NGC 5335

發表日期:2025-04-26
哈勃太空望遠鏡捕捉到了這幅令人驚歎的 NGC 5335 的肖像。 在哈勃望遠鏡的視野中,這個宏偉的螺旋星系橫跨約 17 萬光年,距離室女座超過 2 億光年。在星系盤內,沿著星系的絮狀旋臂分佈著鬆散的恆星形成區。不過,NGC 5335 最顯著的特徵是它突出的中心條紋。據瞭解,在包括銀河系在內的大約 30 %的星系中,棒狀結構都會將物質向內引向星系中心,從而促進恆星的形成。當然,遙遠的背景星系也很容易發現,它們散佈在清晰的哈勃影像周圍。哈勃於 1990 年發射升空,現在正值它從地球軌道探索宇宙的第 35 個年頭。
原文:This stunning portrait of NGC 5335 was captured by the Hubble Space Telescope. Some 170,000 light-years across and over 200 million light-years away toward the constellation Virgo, the magnificent spiral galaxy is seen face-on in Hubble's view. Within the galactic disk, loose streamers of star forming regions lie along the galaxy's flocculent spiral arms. But the most striking feature of NGC 5335 is its prominent central bar. Seen in about 30 percent of galaxies, including our Milky Way, bar structures are understood to channel material inward toward the galactic center, fueling star formation. Of course, distant background galaxies are easy to spot, scattered around the sharp Hubble image. Launched in 1990, Hubble is now celebrating its 35th year exploring the cosmos from orbit around planet Earth.
※ 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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