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Arp 186 (Interacting Galaxy)


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Arp 186
Interacting Galaxy (相互作用銀河)
SBc/P

別名 (Other names)
NGC 1614, PGC 15538, MCG -1-12-32, Mrk 0617, ll Zw 015

明るさ (Brightness)

12.9等級


星座 (Constellation)
エリダヌス座 (Eri) (Eridanus)

距離 (Distance)
2億光年 (200 million light-years)

Arp 186 (NGC 1614) is an interacting galaxy located 200 million light years from the Earth in the constellation Eridanus.

Arp 186 (NGC 1614) : Picture

Arp 186 (NGC 1614)
Arp 186 (NGC 1614)
(C) NASA
The galaxy system NGC 1614 has a bright optical center and two clear inner spiral arms that are fairly symmetrical. It also has a spectacular outer structure that consists principally of a large one-sided curved extension of one of these arms to the lower right, and a long, almost straight tail that emerges from the nucleus and crosses the extended arm to the upper right. The galaxy appears to be the result of a tidal interaction and the resulting merger of two predecessor systems. The system has a nuclear region of quasar-like luminosity, but shows no direct evidence for an active nucleus. It is heavily and unevenly reddened across its nucleus, while infrared imaging also shows a ridge of dust. The linear tail to the upper right and extended arms to the lower right are likely the remains of an interacting companion and the tidal plume caused by the collision. NGC 1614 is located about 200 million light-years away from Earth in the constellation of Eridanus, the River.

Arp 186 (NGC 1614)
Arp 186 (NGC 1614)
(C) NASA
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Arp 186 (NGC 1614) : Movie

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