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Iris Nebula
The Iris Nebula is an emission nebula in the constellation Cepheus. The bright central region is illuminated by the 7th magnitude star in the center. The region is surrounded by a dusty cloud that obscurs the nearby stars.
Taken by: Bob Finnigan and Lee Green
Date: 9/19/2011
Exposure: LRGB, 45 minutes each using 15 minute subframes
Hubble Space Telescope image: Cassiopeia A - The colourful aftermath of a violent stellar death
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