NASA·APOD每日天文一圖2022.5.13 [超高清]
哈哈哈,APOD你猜對了嗎?沒錯!就是它:

There's a black hole at the center of the Milky Way. Stars are observed to orbit a very massive and compact object there known as Sgr A* (say "sadge-ay-star"). But this just released radio image (inset) from planet Earth's Event Horizon Telescope is the first direct evidence of the Milky Way's central black hole. As predicted by Einstein's Theory of General Relativity, the four million solar mass black hole's strong gravity is bending light and creating a shadow-like dark central region surrounded by a bright ring-like structure. Supporting observations made by space-based telescopes and ground-based observatories provide a wider view of the galactic center's dynamic environment and an important context for the Event Horizon Telescope's black hole image. The main panel image shows the X-ray data from Chandra and infrared data from Hubble. While the main panel is about 7-light years across, the Event Horizon Telescope inset image itself spans a mere 10 light-minutes at the center of our galaxy, some 27,000 light-years away.?
在銀河系的中心有一個黑洞。觀測到恒星圍繞著一個非常大且緊湊的天體運行,該天體被稱為Sgr a*(即“sadge ay星”)。這張剛剛從地球事件視界望遠(yuǎn)鏡發(fā)布的射電圖像(上圖)是銀河系中心黑洞的第一個直接證據(jù)。正如愛因斯坦的廣義相對論所預(yù)測的那樣,400萬太陽質(zhì)量的黑洞的強大引力正在彎曲光線,形成一個陰影狀的黑暗中心區(qū)域,周圍環(huán)繞著一個明亮的環(huán)狀結(jié)構(gòu)。由天基望遠(yuǎn)鏡和地面天文臺進(jìn)行的支持性觀測為銀河系中心的動態(tài)環(huán)境提供了更廣闊的視野,并為事件視界望遠(yuǎn)鏡的黑洞圖像提供了重要背景。主面板圖像顯示了錢德拉的X射線數(shù)據(jù)和哈勃的紅外數(shù)據(jù)。雖然主面板的直徑約為7光年,但“事件地平線”望遠(yuǎn)鏡的插入圖像本身在我們銀河系中心的跨度僅為10光-分鐘,約為27000光年。