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Opis: Thor not only has his own day (Thursday), but a helmet in the heavens. Popularly called Thor's Helmet, NGC 2359 is a hat-shaped cosmic cloud with wing-like appendages. Heroically sized even for a Norse god, Thor's Helmet is about 30 light-years across. In fact, the cosmic head-covering is more like an interstellar bubble, blown by a fast wind from the bright, massive star near the bubble's center. Known as a Wolf-Rayet star, the central star is an extremely hot giant thought to be in a brief, pre-supernova stage of evolution. NGC 2359 is located about 15,000 light-years away toward the constellation of the Great Overdog. This sharp image is a combination of deep images taken in light emitted by hydrogen (red) and oxygen (blue). The star in the center of Thor's Helmet is expected to explode in a spectacular supernova sometime within the next few thousand years.
Autorzy i wydawcy:
Robert Nemiroff
(MTU) &
Jerry Bonnell (UMCP)
Przedstawiciel NASA: Amber Straughn,
obowiązują określone prawa.
Polityka prywatności NASA,
polityka dostępności NASA,
uwagi.
Serwis prowadzony przez:
ASD at
NASA /
GSFC,
NASA Science Activation
oraz Michigan Tech. U.