http://www.universetoday.com/2008/04/01/supernova-alert-%e2%80%9csupernova-factories%e2%80%9d-discovered/ Space and astronomy news Sun, 8 Nov 2009 08:15:54 -0600 http://wordpress.org/?v=2.8.5 hourly 1 http://www.universetoday.com/2008/04/01/supernova-alert-%e2%80%9csupernova-factories%e2%80%9d-discovered/comment-page-1/#comment-17121 Ryan Wed, 02 Apr 2008 08:20:46 +0000 http://www.universetoday.com/2008/04/01/supernova-alert-%e2%80%9csupernova-factories%e2%80%9d-discovered/#comment-17121 I think it's interesting to think that since these stars are about 20k light years away, there's probably four or five supernovae that have already happened but we haven't seen yet. I think it's interesting to think that since these stars are about 20k light years away, there's probably four or five supernovae that have already happened but we haven't seen yet.

]]> http://www.universetoday.com/2008/04/01/supernova-alert-%e2%80%9csupernova-factories%e2%80%9d-discovered/comment-page-1/#comment-17074 ScepticTim Tue, 01 Apr 2008 17:43:12 +0000 http://www.universetoday.com/2008/04/01/supernova-alert-%e2%80%9csupernova-factories%e2%80%9d-discovered/#comment-17074 The article does not give an estimate of the total number of member stars in these clusters. I wonder if there are enough members to make it worthwhile to construct HR diagrams: a relatively simple way to reveal much about the evolution of these massive stars. The article does not give an estimate of the total number of member stars in these clusters. I wonder if there are enough members to make it worthwhile to construct HR diagrams: a relatively simple way to reveal much about the evolution of these massive stars.

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