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Kepler's Supernova Remnant


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Kepler's Supernova Remnant
Supernova Remnant (超新星残骸)
SNR

別名 (Other names)
SN 1604

星座 (Constellation)

へびつかい座 (Oph) (Ophiuchus)


距離 (Distance)
13,000光年 (13,000 light-years)

Kepler's Supernova Remnant is a supernova remnant located 13,000 light years from the Earth in the constellation Ophiuchus.

Kepler's Supernova Remnant : Picture

Kepler's Supernova Remnant in X-Rays
Kepler's Supernova Remnant in X-Rays
(C) NASA/CXC/NCSU/M. Burkey et al. Optical: DSS
What caused this mess? Some type of star exploded to create the unusually shaped nebula known as Kepler's supernova remnant, but which type? Light from the stellar explosion that created this energized cosmic cloud was first seen on planet Earth in October 1604, a mere four hundred years ago. The supernova produced a bright new star in early 17th century skies within the constellation Ophiuchus. It was studied by astronomer Johannes Kepler and his contemporaries, without the benefit of a telescope, as they searched for an explanation of the heavenly apparition. Armed with a modern understanding of stellar evolution, early 21st century astronomers continue to explore the expanding debris cloud, but can now use orbiting space telescopes to survey Kepler's supernova remnant (SNR) across the spectrum. Recent X-ray data and images of Kepler's supernova remnant taken by the orbiting Chandra X-ray Observatory has shown relative elemental abundances typical of a Type Ia supernova, and further indicated that the progenitor was a white dwarf star that exploded when it accreted too much material from a companion Red Giant star and went over Chandrasekhar's limit. About 13,000 light years away, Kepler's supernova represents the most recent stellar explosion seen to occur within our Milky Way galaxy.

Kepler's Supernova Remnant in X-Rays
Kepler's Supernova Remnant in X-Rays
(C) NASA/CXC/NCSU/S. Reynolds et al.

Kepler's Supernova Remnant Kepler's Supernova Remnant
Kepler's Supernova Remnant
(C) NASA
Kepler's Supernova Remnant
(C) NASA
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Kepler's Supernova Remnant : Movie

Kepler's Supernova Remnant in 60 Seconds
Over 400 years ago, Johannes Kepler and many others witnessed the appearance of a new "star" in the sky.
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