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Re: Colliding galaxies in Virgo (NGC 4567/4568)

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  • waddington50
    Thanks to everyone for the encouraging comments on this one - much appreciated. Bruce
    Message 1 of 6 , May 28, 2013
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      Thanks to everyone for the encouraging comments on this one - much appreciated.

      Bruce

      --- In ccd-newastro@yahoogroups.com, "epulinx" <e_pulinx@...> wrote:
      >
      > fantastic !
      > E-M Pulinx,MD
      >
      > --- In ccd-newastro@yahoogroups.com, "waddington50" <bw_msg01@> wrote:
      > >
      > > This is a recent image, shot on 4/13 and 5/11/2013 from a dark-sky site
      > > near Anza, CA. The imaging train is a 12.5" PlaneWave scope with a
      > > QSI-640ws camera operating at f/8 using an OAG. Integration times were
      > > 170:70:60:50 minutes LRGB, 5.8 hours total. Median FWHM in luminance
      > > was 2.9 a-s before processing.
      > >
      > > The image can be seen here:
      > > http://www.oc-aisig.org/zenphoto/albums/Astronomy-Images/siamese_lrgb_3.\
      > > jpg
      > > <http://www.oc-aisig.org/zenphoto/albums/Astronomy-Images/siamese_lrgb_3\
      > > .jpg>
      > >
      > > Click on the image to see the full resolution rendition which shows more
      > > detail in the galaxy cores.
      > >
      > > Processing was done with CCDStack for the "heavy lifting", ExCalibrator
      > > for color balance, and PS for final adjustments. This target is a bit
      > > tricky to process because the galaxy cores are fairly low-contrast, and
      > > there aren't a lot of amateur images of this field for use as
      > > references.
      > >
      > > Thanks for looking - comments and criticism welcome...
      > >
      > > Bruce Waddington
      > >
      > >
      > > [Non-text portions of this message have been removed]
      > >
      >
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