Credit & Copyright: Eric Coles
Explanation:
Normally faint and elusive, the Jellyfish Nebula is caught in
this alluring telescopic mosaic.
The scene is anchored below by bright star
Eta
Geminorum, at the foot of the
celestial
twin, while
the Jellyfish Nebula is the brighter arcing
ridge of emission with tentacles dangling below and left of center.
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 right.
The Jellyfish Nebula is about 5,000 light-years away.
At that distance,
this narrowband
composite image
presented in the Hubble Palette would be about 300 light-years across.
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Publikacii s klyuchevymi slovami:
emission nebula - supernova remnant - emissionnaya tumannost' - ostatok Sverhnovoi
Publikacii so slovami: emission nebula - supernova remnant - emissionnaya tumannost' - ostatok Sverhnovoi | |
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