PIA10393: NGC 6621/2
 Mission:  Hubble Space Telescope
 Instrument:  WFPC2
 Product Size:  3038 x 1580 pixels (w x h)
 Produced By:  Space Telescope Science Institute
 Full-Res TIFF:  PIA10393.tif (14.4 MB)
 Full-Res JPEG:  PIA10393.jpg (509.2 kB)

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Original Caption Released with Image:

Click here for Poster Version of Galaxies Gone Wild PIA10385Click here for Hubble Interacting Galaxies Poster PIA10385
Galaxies Gone Wild!
Poster Version

Unannotated Poster Version
Hubble Interacting Galaxies Poster

NGC 6621/2 (VV 247, Arp 81) is a strongly interacting pair of galaxies, seen about 100 million years after their closest approach. It consists of NGC 6621 (to the left) and NGC 6622 (to the right). NGC 6621 is the larger of the two, and is a very disturbed spiral galaxy. The encounter has pulled a long tail out of NGC 6621 that has now wrapped behind its body. The collision has also triggered extensive star formation between the two galaxies. Scientists believe that Arp 81 has a richer collection of young massive star clusters than the notable Antennae galaxies (which are much closer than Arp 81). The pair is located in the constellation of Draco, approximately 300 million light-years away from Earth. Arp 81 is the 81st galaxy in Arp's Atlas of Peculiar Galaxies.

This image is part of a large collection of 59 images of merging galaxies taken by the Hubble Space Telescope and released on the occasion of its 18th anniversary on 24th April 2008. It was taken by the telescope's Wide Field and Planetary Camera 2, which was designed and built by JPL.

Image Credit:
NASA, ESA, the Hubble Heritage Team (STScI/AURA)-ESA/Hubble and W. Keel (University of Alabama, Tuscaloosa)

Image Addition Date: