Media Information
 
 
 
Collection:
NASA Astronomy Picture of the Day Collection
Title:
M13: The Great Globular Cluster in Hercules
Explanation:
M13 [ http://www.seds.org…] is one of the most prominent and best known globular clusters [ http://antwrp.gsfc.…]. Visible with binoculars in the constellation of Hercules [ http://www.astro.wi…], M13 is frequently one of the first objects found by curious sky gazers seeking celestials wonders [ http://www.janis.or…] beyond normal human vision. M13 [ http://www.concentr…] is a colossal home to over 100,000 stars, spans over 150 light years [ http://www.howstuff…] across, lies over 20,000 light years distant, and is over 12 billion years old. At the 1974 dedication of Arecibo Observatory [ http://www.naic.edu/], a radio message [ http://antwrp.gsfc.…] about Earth was sent in the direction of M13 [ http://www.windows.…]. The reason for the low abundance of unusual blue straggler stars [ http://antwrp.gsfc.…] in M13 is currently unknown [ http://adsabs.harva…].
Credit and Copyright:
Yuugi Kitahara [ mailto:kitahara@jani s.or.jp ]
keyword:
blue stragglers
keyword:
M13
keyword:
globular cluster
facet_where:
Goddard Space Flight Center (GSFC)
facet_what:
Earth
facet_what:
Hercules
facet_what:
USERS
facet_what:
globular cluster
original url:
http://antwrp.gsfc.…
UID:
SPD-APOD-ap000301

M13: The Great Globular Cluster in Hercules
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