描述Stephan's Quintet illustration of compact groups.jpg
English: The top panel of this diagram illustrates an alignment of galaxies streched out across space. The bottom panel shows a clump of galaxies at approximately the same distance.
NASA, J. English (U. Manitoba), S. Hunsberger (PSU), Z. Levay (STScI), S. Gallagher, and J. Charlton (PSU)
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Public domainPublic domainfalsefalse
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.
{{Information |Description={{en|The top panel of this diagram illustrates an alignment of galaxies streched out across space. The bottom panel shows a clump of galaxies at approximately the same distance.}} |Source=http://hubblesite.org/newscenter/newsdes