This 1991 image from NASA's Hubble Space Telescope captures a small section of the Cygnus Loop supernova remnant.
这幅由哈勃空间望远镜摄于1991年的图像捕捉到了天鹅座Loop超新星的一小段残骸。
Also known as the Cygnus Loop, the Veil Nebula now spans nearly 3 degrees or about 6 times the diameter of the full Moon.
面纱星云也被称为天鹅座环，现在的视角跨度近3度，即大约6倍满月的直径。
The Cygnus Loop appears as a faint ring of glowing gases about three degrees across (six times the diameter of the full moon), located in the northern constellation Cygnus the Swan.
天鹅座的Loop看起来是个由炽热气体形成的模糊光环(满月直径的6倍大小)，坐落在天鹅座星群的北方。
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