大视野图像里的茧状星云
2022年10月26日 Cocoon Nebula Wide Field Image Credit & Copyright: Andy Ermolli Explanation: When does a nebula look like a comet? In this crowded starfield, covering over two degrees within the high flying constellation of the Swan (Cygnus), the eye is drawn to the Cocoon Nebula. A compact star forming region, the cosmic Cocoon punctuates a nebula bright i...