Media Information
 
 
 
Collection:
NASA Astronomy Picture of the Day Collection
Title:
Globular Cluster M15
Explanation:
Stars, like bees, swarm around the center of bright globular cluster M15. This ball of over 100,000 stars [ http://starchild.gs…] is a relic from the early years [ http://antwrp.gsfc.…] of our Galaxy [ http://www.seds.org…], and continues to orbit the Milky Way's center [ http://antwrp.gsfc.…]. M15 [ http://www.seds.org…], one of about 150 globular clusters [ http://antwrp.gsfc.…] remaining, is noted for being easily visible with only binoculars [ http://www.birdwatc…], having at its center one of the densest concentrations of stars [ http://antwrp.gsfc.…] known, and containing a high abundance of unusual variable stars [ http://www.skypub.c…] and pulsars [ http://imagine.gsfc…]. The above image [ http://www.noao.edu…], taken in ultraviolet light [ http://imagers.gsfc…] with the WIYN Telescope [ http://www.noao.edu…], spans about 120 light years and shows the gradual increase in stars toward the cluster's center. M15 [ http://www.astr.ua.…] lies about 35,000 light years [ http://chandra.harv…] away toward the constellation [ http://www.adlerpla…] of Pegasus [ http://www.astro.wi…]. Recent evidence [ http://antwrp.gsfc.…http://adsabs.harva…] indicates that a massive black hole [ http://archive.ncsa…] might reside as the center of M15 [ http://antwrp.gsfc.…].
Credit and Copyright:
Haldan Cohn [ http://www.astro.in…] (Indiana U. [ http://www.astro.in…]) et al., WIYN [ http://www.noao.edu…], NOAO [ http://www.noao.edu/], NSF [ http://www.nsf.gov/]
keyword:
globular cluster
keyword:
M15
facet_where:
Indiana
facet_where:
Goddard Space Flight Center (GSFC)
facet_where:
Washington, D.C.
facet_what:
Pegasus
facet_what:
globular cluster
original url:
http://antwrp.gsfc.…
UID:
SPD-APOD-ap011210

Globular Cluster M15
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