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NGC 5256 (Interacting Galaxy)


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NGC 5256
Interacting Galaxy (相互作用銀河)
Gx Sab/P


別名 (Other names)
PGC 48192, UGC 8632, MCG 8-25-31, Markarian 266, Mrk 266, I Zw 67, KPG 388

明るさ (Brightness)

13.1等級


星座 (Constellation)
おおぐま座 (UMa) (Ursa Major)

距離 (Distance)
3億5,000万光年 (350 million light-years)

NGC 5256 is an interacting galaxy located 350 million light years from the Earth in the constellation Ursa Major.

NGC 5256 (Interacting Galaxy) : Picture

Interacting Galaxy NGC 5256
Hubble Interacting Galaxy NGC 5256
(C) NASA/ESA/Hubble
NGC 5256, also known as Markarian 266, is a striking example of two disk galaxies that are about to merge. Spectacular streamers of gas surround the two nuclei and eye-catching blue spiral trails indicate recent star formation. The shape of the object is highly disturbed and observations in various wavelength regimes — infrared, millimeter-wave and radio — provide additional evidence for a starburst in this system. NGC 5256 is located in the constellation of Ursa Major, some 350 million light-years from Earth. Each galaxy also contains an active galactic nucleus, evidence that the chaos is allowing gas to fall into the regions around central black holes as well as feeding starbursts. Recent observations from the Chandra X-ray Observatory show that both nuclei, as well as a region of hot gas in between them, have been heated by the shock waves driven as gas clouds at high velocities collide.

NGC 5256
NGC 5256
(C) NASA/ESA/Hubble
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