Veil Nebula in Cygnus (Narrowband)
The Veil Nebula in Cygnus, also known as the Great Cygnus Loop, is a supernova remnant from a massive star that exploded 5,000 to 8,000 years ago. The rapidly expanding stellar remnants and heated gases emit light that is detected with an array of filters (Red channel – Sulfur II; Green channel – Hydrogen alpha; Blue channel – Oxygen III) to form a SHO narrowband image. The supernova remnant is 1,500 light years from the Sun and over 70 light years wide. The bright part of the nebula to the left is also known as the Eastern Veil nebula (NGC 6979). The bright part of the nebula on the right associated with the bright star – 52-Cygni is NGC 6960, the Western Veil nebula, also known as The Witch’s Broom.
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