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SNR 0509 (Supernova Remnant)


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SNR 0509
Supernova Remnant (超新星残骸)
SNR

星座 (Constellation)

かじき座 (Dor) (Dorado)


距離 (Distance)
160,000光年 (160,000 light-years)

SNR 0509 is a supernova remnant located 160,000 light years from the Earth in the constellation Dorado.

SNR 0509 (Supernova Remnant) : Picture

The Rippled Red Ribbons of SNR 0509
The Rippled Red Ribbons of SNR 0509
(C) NASA, ESA, and the Hubble Heritage Team (STScI/AURA); Acknowledgment: J. Hughes (Rutgers U.)
What is causing the picturesque ripples of supernova remnant SNR 0509-67.5? The ripples, as well as the greater nebula, were imaged in unprecedented detail by the Hubble Space Telescope in 2006 and again late last year. The red color was recoded by a Hubble filter that left only the light emitted by energetic hydrogen. The precise reason for the ripples remains unknown, with two considered origin hypotheses relating them to relatively dense portions of either ejected or impacted gas. The reason for the broader red glowing ring is more clear, with expansion speed and light echos relating it to a classic Type Ia supernova explosion that must have occurred about 400 years earlier. SNR 0509 currently spans about 23 light years and lies about 160,000 light years away toward the constellation of Dorado in the Large Magellanic Cloud. The expanding ring carries with it another great mystery, however: why wasn't this supernova seen 400 years ago when light from the initial blast should have passed the Earth?

SNR B0509-67.5
SNR B0509-67.5
(C) NASA, ESA, the Hubble Heritage Team (STScI/AURA), and NASA/CXC/SAO/J. Hughes

SNR 0509
SNR 0509
(C) NASA/ESA
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