Celestial hemisphere:  Northern  ·  Constellation: Pegasus (Peg)  ·  Contains:  NGC 7547  ·  NGC 7549  ·  NGC 7550  ·  NGC 7558
Arp 99, François Régembal
Arp 99
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Arp 99

Arp 99, François Régembal
Arp 99
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Arp 99

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Description

Arp 99 (Hickson Compact Group 93) consists of NGC 7550 (UGC 12456 and others), an elliptical AGN galaxy at the center, NGC 7547 (UGC 12453 and others), the spiral to the west interacting with it and NGC 7549 (UGC 12457 and others), the stretched barred spiral. NGC 7550 and 7547 appear to be approximately 225 million light-years away. NGC 7549 is closer at approximately 209 million light-years away. All of these are located in Pegasus.

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Arp 99, François Régembal