Arp 104 - Keenan's system (Bart Delsaert)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: NGC 5205 · NGC 5216 · NGC 5218

Arp 104 - Keenan's system, Bart Delsaert

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Arp 104 - Keenan's system

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Arp 104 - Keenan's system

Arp 104, also known as Keenan’s System, consists of the two spiral galaxies NGC 5216 (bottom) and NGC 5218 (top). The two are connected by a thin stream of gas, in which new stars are forming. The stream was created when the two galaxies passed by each other, their mutual gravity pulling the gas out. The newly formed hot, massive stars turn the stream blue. The stream is about 150,000 light years in length.
Keenan’s System has been well-studied but you’ll find they have rarely been imaged. What has been captured even less so, are the tidal streams at the opposite sides of this stellar bridge. I was able to bring out this signal by applying excessive stretching and local noise reduction.
Keenan’s System lies about 17.3 million light-years away.

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04 - Galaxies

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Status	Basic success
Started	...
Astrometry.net job	7066140
PixInsight job	n/a
PixInsight queue size	n/a
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Arp 104 - Keenan's system

Arp 104 - Keenan's system

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Arp 104 - Keenan's system

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