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Sharpless 249 and the Jellyfish Nebula

Published by Klaus Schmidt on Fri Mar 23, 2018 9:12 am via: NASA
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Normally faint and elusive, the Jellyfish Nebula is caught in this alluring telescopic image. Centered in the scene it’s anchored right and left by two bright stars, Mu and Eta Geminorum, at the foot of the celestial twin. The Jellyfish Nebula is the brighter arcing ridge of emission with dangling tentacles. In fact, the cosmic jellyfish is part of bubble-shaped supernova remnant IC 443, the expanding debris cloud from a massive star that exploded.

Light from the explosion first reached planet Earth over 30,000 years ago. Like its cousin in astrophysical waters the Crab Nebula supernova remnant, the Jellyfish Nebula is known to harbor a neutron star, the remnant of the collapsed stellar core. An emission nebula cataloged as Sharpless 249 fills the field at the upper left. The Jellyfish Nebula is about 5,000 light-years away. At that distance, this image would be about 300 light-years across.

Image Credit & Copyright: Albert Barr

Image Credit & Copyright: Albert Barr

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