Veil Nebula
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The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. It constitutes the visible portions of the Cygnus Loop (radio source W78, or Sharpless 103), a large but relatively faint supernova remnant. The source supernova exploded some 5,000 to 8,000 years ago, and the remnants have since expanded to cover an area roughly 3 degrees in diameter (about 6 times the diameter of the full moon). The distance to the nebula is not precisely known, but Far Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light-years.

A tour of the Veil nebula, from West to East
The Veil Nebula in Cygnus covers a field of approx 3° x 3° (about 6 times the moon diameter). Following pictures are selected portions:

NGC 6960, mosaic of 4 images
NGC 6960, detail around bright Mag 4 star.
20h45:39 +30°42'
NGC 6979, 20h50:56 +32°09'
NGC 6992, 20h56:17 +31°42'
NGC 6995, 20h57:00 +31°13'
Mosaic of 4 images covering the eastern part of the Veil nebula, known as Network nebula
 

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