bubble nebula

A starfield is shown with a big light bubble in the center. A bright star is toward the upper right in the translucent bubble. To some, the bubble may resemble a skull. Please see the explanation for more detailed information.
星空中央有一个明亮的大气泡。半透明的气泡右上方有一颗明亮的恒星。有些人觉得这个气泡像是一个骷髅。有关更多详细信息，请参阅说明。