NGC 7635: 气泡星云

2024年10月30日

NGC 7635: The Bubble Nebula
Credit & Copyright: Chad Leader

Explanation: What created this huge space bubble? Blown by the wind from a star, this tantalizing, head-like apparition is cataloged as NGC 7635, but known simply as the Bubble Nebula. The featured striking view utilizes a long exposure to reveal the intricate details of this cosmic bubble and its environment. Although it looks delicate, the 10 light-year diameter bubble offers evidence of violent processes at work. Seen here above and right of the Bubble‘s center, a bright hot star is embedded in the nebula’s reflecting dust. A fierce stellar wind and intense radiation from the star, which likely has a mass 10 to 20 times that of the Sun, has blasted out the structure of glowing gas against denser material in a surrounding molecular cloud. The intriguing Bubble Nebula lies a mere 11,000 light-years away toward the boastful constellation Cassiopeia.

Your Sky Surprise: What picture did APOD feature on your birthday? (post 1995)
Tomorrow’s picture: All Hallow’s Eve

NGC 7635: 气泡星云
影像提供与版权: Chad Leader

说明: 这个庞大的太空气泡是怎么产生的？这团编录号为NGC 7635、称为气泡星云的迷人头状幻影，是由恒星的恒星风吹拂而成。这幅吸睛的长曝光主题影像，呈现了这团宇宙级气泡及其周围环境错综复杂的细微结构。虽然它看起来十分纤弱，但这团直径高达10光年的气泡见证了剧烈的过程。在气泡中心的右上方，可以看到一颗嵌在反射星云尘埃里的明亮高温恒星。这颗质量可能是太阳10至20倍的恒星，其强烈的恒星风和辐射，把周围分子云中较致密的物质吹开，形成了这个球形的发光气体结构。很有趣的气泡星云，位于仙后座方向距离地球约11,000光年远之处。

你的天空惊喜: 你生日那天APOD展示了什么照片？（1995年后）
明日的图片: All Hallow’s Eve