Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  IC 1340  ·  NGC 6992  ·  NGC 6995  ·  Veil nebula
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Eastern Loop of the Veil Nebula, Mark Ellis
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Eastern Loop of the Veil Nebula

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Eastern Loop of the Veil Nebula, Mark Ellis
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Eastern Loop of the Veil Nebula

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Description

The Eastern Veil nebula (also known as Caldwell 33) is a cloud of heated and ionized gas and dust in the constellation of Cygnus and is located at around 1470 light-years from Earth. It is part of the Cygnus Loop which is a faint supernova remnant that exploded approximately 7000 years ago. From the moment the source star exploded and until now, the Cygnus Loop supernova remnant expanded to a diameter of roughly 3° on the sky (that almost 6 full moons). The red hues in this image are from ionized hydrogen content of gas clouds that emit light in the H-alpha wavelength, while the cyan hues are from oxygen ions.

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