Re: [APML] M13 image

[Dean Jacobsen <deanjacobsen@earthlink.net>]

At 10:55 AM 6/27/2002 -0700, you wrote:
> Brian,
>  
>      Well you sure picked
> up more faint stars than I did... what I was looking for and found in
> your image were the large quantity of blue stars... this flies in the
> face of the theory that globular clusters are made of mostly old
> stars...  snip ....
> But far too many young blue stars to buy
> into the theory that there is no new star formation going on... this
> would suggest that globulars are a dynamic happening, not some remnant
> from an old process.

Tony, not theory... it is fact confirmed by decades of scientific
observation and measurements of spectra, surface temperature, etc. 
There is a BIG difference between amateur CCD images/film photos and
scientific data.  I don't mean to offend, but you should research
the wealth of scientific data regarding the makeup of globular clusters
before you make such strong claims.  If you do the research, I think
that you will agree that your fine rendering if M 13 is not
scientifically accurate.  Still a fine image nonetheless. 

You would also be interested in how much work has been done researching
globular clusters and the types of equipment used.  Their ages are
most interesting to cosmologists because some competing theories [yes,
theories is the correct term here] do not conform with the known ages of
the globular clusters.  Interestingly, the response of  the
scientists has not been to attack the consensus concerning the ages of
the globular clusters.  This is the nice thing about our hobby, you
need to continually keep up with the science to be well informed about
the objects that you are photographing.

Best Regards, 

Dean Jacobsen
www.astrophoto.net