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Celestial Album
Ruprecht 147
06/24/12

 

Astronomers have determined that 80 of the stars in this photo are members of the long-known but underappreciated star cluster Ruprecht 147. These stars were born out of the same cloud of gas and dust approximately 2-billion years ago, and now are traveling together through space, bound by the force of gravity. The astronomers have identified this cluster as a potentially important new reference gauge for fundamental stellar astrophysics. Credit: Chris Beckett and Stefano Meneguolo, Royal Astronomical Society of Canada



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