Thanks for the comment and suggestion. I'll try the apparently more
--- In email@example.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.
> --- In firstname.lastname@example.org, "erdmanpe" <erdmanpe@y...>
> > 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
> > shows it to be popular with radio astronomers, but I couldn't find
> > other amateur images of it, so I followed up with more focal
> > 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
> > I always find it fun to look at higher resolution images of
> > shots and watch the detail continue to emerge.
> > Peter