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File:Hubble Interacting Galaxy NGC 6621 (2008-04-24).jpg

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Description

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 right) and NGC 6622 (to the left). 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.

About the object
Object name NGC 6621, NGC 6622, VV 247, Arp 81, VII Zw 778, KPG 534A
Object description Interacting Galaxies
Position (J2000) 18 12 54.70
+68 21 49.0
Constellation Draco
Distance 300 million light-years (100 million parsecs)
About the data
Data description The Hubble image was created using HST data from proposal 7467: W. Keel (University of Alabama, Tuscaloosa)
Instrument WFPC2
Exposure date(s) March 15, 1999
Exposure time 1.4 hours
Filters F435W (B) and F814W (I)
Date
Source http://hubblesite.org/newscenter/archive/releases/2008/16/image/by/ (direct link)
Author NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and W. Keel (University of Alabama, Tuscaloosa)
Permission
(Reusing this file)
Public domain
This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.

The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org.

For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.

Captions

A image of the NGC 6621'

Items portrayed in this file

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galaxy

outer space

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NGC 6621

inception

24 April 2008

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image/jpeg

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current21:03, 27 April 2008Thumbnail for version as of 21:03, 27 April 20083,038 × 1,580 (3.99 MB)とある白い猫{{Information |Description=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

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