Thanks, Chuck, it looks like our galaxy, at least, has strictly ancient globular clusters. Whew. Thanks to others who responded also. I tried to reprocess my picture and see if there was something wrong with my color balance, but I only got a predominantly green color. And I know that's not right. Best wishes, Joe --- On Thu, 6/11/09, Chuck Hards <chuck.hards@gmail.com> wrote: From: Chuck Hards <chuck.hards@gmail.com> Subject: Re: [Utah-astronomy] M22, Part 2 To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Date: Thursday, June 11, 2009, 12:29 PM Joe, take a look at this: http://antwrp.gsfc.nasa.gov/apod/globular_clusters.html On Thu, Jun 11, 2009 at 10:48 AM, Joe Bauman <josephmbauman@yahoo.com>wrote:

This makes me wonder if one of my basic assumptions is wrong. I thought all globulars were extremely ancient. But could a population of blue stars be as old as red ones? Can someone help me understand this? Thanks, Joe

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