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原文:
Is this galaxy jumping through a giant ring of stars? Probably not. Although the precise dynamics behind the featured image is yet unclear, what is clear is that the pictured galaxy, NGC 7714, has been stretched and distorted by a recent collision with a neighboring galaxy. This smaller neighbor, NGC 7715, situated off to the left of the featured frame, is thought to have charged right through NGC 7714. Observations indicate that the golden ring pictured is composed of millions of older Sun-like stars that are likely co-moving with the interior bluer stars. In contrast, the bright center of NGC 7714 appears to be undergoing a burst of new star formation. NGC 7714 is located about 100 million light years away toward the constellation of the Fish (Pisces). The interactions between these galaxies likely started about 150 million years ago and should continue for several hundred million years more, after which a single central galaxy may result. APOD Retrospective: Peculiar and Interacting Galaxies
中文翻譯:
🌌 這是銀河穿越一個巨型星環嗎？答案可能是否定的。雖然這幅圖像背後的精確動力學尚不清楚，但毫無疑問的是，這個名為 NGC 7714 的銀河因為最近與鄰近銀河的碰撞而被拉伸和扭曲。這個較小的鄰居 NGC 7715，位於畫面的左側，据信是直接穿過了 NGC 7714。觀測顯示，畫中金色的星環由數以百萬計的老年類太陽星組成，這些星星可能與內部的藍色星星共同運行。相較之下，NGC 7714 的明亮中心似乎正在經歷一場新的星系形成爆發。
NGC 7714 距離我們約為1億光年，位於魚座（Pisces）方向。這些銀河之間的相互作用可能始於約1.5億年前，並將持續幾百萬年，最終可能形成一個中央銀河。
#NGC7714 #宇宙探險 #銀河 #星系碰撞 #星際物質 #天文學 #宇宙奧秘 #魚座 #新星形成 #天文觀察 #APODRetrospective
來源:NASA每日圖片
