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File:NGC 4639 (captured by the Hubble Space Telescope).jpg

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Description

This Hubble Space Telescope image shows NGC 4639, a spiral galaxy located 78 million light-years away in the Virgo cluster of galaxies.

The blue dots in the galaxy's outlying regions indicate the presence of young stars. Among them are young, bright stars called Cepheids, which are used as reliable milepost markers to obtain accurate distances to nearby galaxies.
Date
Source http://www.spacetelescope.org/images/opo9621b/ (direct link)
Author A. Sandage (Carnegie Observatories), A. Saha (Space Telescope Science Institute), G.A. Tammann, and L. Labhardt (Astronomical Institute, University of Basel), F.D. Macchetto and N. Panagia (Space Telescope Science Institute and European Space Agency) and NASA
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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.
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inception

9 May 1996

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446,291 byte

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1,505 pixel

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1,483 pixel

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image/jpeg

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f176dc67d38a7fd37dbaf7e3b0374c01362b092c

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Date/TimeThumbnailDimensionsUserComment
current18:27, 9 July 2009Thumbnail for version as of 18:27, 9 July 20091,483 × 1,505 (436 KB)Tryphon{{Information |Description=This en:Hubble Space Telescope image shows en:NGC 4639, a en:spiral galaxy located 78 million light-years away in the en:Virgo cluster of galaxies. The blue dots in the galaxy's outlying regions indicate
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