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Re: Simeis 57 in Ha

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  • erdmanpe
    Thanks for the comment and suggestion. I ll try the apparently more common name! Peter
    Message 1 of 3 , Nov 1, 2005
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      Thanks for the comment and suggestion. I'll try the apparently more
      common name!

      Peter

      --- In ccd-newastro@yahoogroups.com, "Paul K" <paul@p...> wrote:
      >
      > Hi Peter,
      >
      > Your wide-field shot is excellent and reveals a lot of subtle
      > detail. As to the S-shaped nebula, it's also known as Propeller
      > Nebula or DWB111. If you google for either or both of these names,
      > you'll find a few good images of this object.
      >
      > Regards,
      >
      > -Paul
      >
      > --- In ccd-newastro@yahoogroups.com, "erdmanpe" <erdmanpe@y...>
      > wrote:
      > >
      > > My recent widefield image of the Sadr region
      > >
      > > http://groups.yahoo.com/group/ccd-newastro/files/Sadr_region.jpg
      > >
      > > contained this peculiar "S" shaped nebula, Simeis 57. A google
      > search
      > > shows it to be popular with radio astronomers, but I couldn't find
      > any
      > > other amateur images of it, so I followed up with more focal
      > length:
      > >
      > > http://groups.yahoo.com/group/ccd-newastro/files/Simeis_57.jpg
      > >
      > > If anyone is aware of other available images, I would be
      > interested in
      > > looking at them.
      > >
      > > Taken with a TMB 130mm, f/6, STL11K camera, Barr Associates 4nm
      > > filter. Although I spent all evening on it, I got only 1 hour total
      > > exposure, with 5 minute subframes, since the cloud patches seemed
      > > consistently about 4 minutes apart. Processing and log stretch in
      > Maxim.
      > >
      > > I always find it fun to look at higher resolution images of
      > widefield
      > > shots and watch the detail continue to emerge.
      > >
      > > Peter
      > >
      >
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