泡泡星云(又名为NGC7635)嵌入在复杂的星际尘埃与云气之中，以及受到巨大的O型恒星的星际风所影响，约莫为10光年宽。
影像右上角有称为泡泡星云的NGC 7635和星团m 52。
At the upper right lies NGC 7635 (the Bubble Nebula) and star cluster M52.
泡泡星云，大约10光年大小，并且是更大、更复杂的星球与泡泡的一部份。上图套用有科学意义的颜色，以提高对比。
The Bubble Nebula, pictured above in scientifically mapped colors to bring up contrast, is about 10 light-years across and part of a much larger complex of stars and shells.
尽管像发射星云，猎户座的泡泡，为人所熟知的巴纳德环，到现在还有很多未知之处。
Although glowing like an emission nebula, the origin of the bubble, known as Barnard's Loop, is currently unknown.
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