Hi Serena,

It is a neat subject. The open cluster is loose and not very well
condensed, and there is a definite dark nebula visible strong in the
northern regions. What is most challenging about this object is that
there are bright stars in it. With my non-antiblooming imager, all
of them bloom in less than a minute. Also there are interesting blue
fringes towards the edge of the gas cloud suggesting reflections
from the nearby stars.

~john

--- In ccdimaging2@yahoogroups.com, serena_aussie <no_reply@y...>
wrote:
> That is a nice image John. Interesting to have a diffuse nebula in
> the "middle" of an open cluster -- are these related objects or
just
> optical coincidences? In your image I see no evidence of the
> periphery of the cluster, so presumably it is actually a bit
larger
> than my star chart states (nebula 12 x 12 mins, cluster 20 mins).
> Perhaps there is some more nebulosity that was too faint to be
> recorded in your excellent image. Of course not visible from here.
>
> Serena