File:The globular cluster NGC 6388, observed by Hubble.jpg
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Summary[edit]
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English: This image from the NASA/ESA Hubble Space Telescope shows NGC 6388, a dynamically middle-aged globular cluster in the Milky Way. While the cluster formed in the distant past (like all globular clusters, it is over ten billion years old), a study of the distribution of bright blue stars within the cluster shows that it has aged at a moderate speed, and its heaviest stars are in the process of migrating to the centre.
A new study using Hubble data has discovered that globular clusters of the same age can have dramatically different distributions of blue straggler stars within them, suggesting that clusters can age at substantially different rates. |
| Date | |
| Source | http://www.spacetelescope.org/images/heic1221a/ |
| Author | NASA, ESA, F. Ferraro (University of Bologna) |
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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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 15:15, 26 December 2012 | | 4,278 × 4,197 (11.73 MB) | Jmencisom (talk | contribs) | User created page with UploadWizard |
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