NGC253 the Sculptor Galaxy

[gregbradley]

Here is one I took at my dark site with my AstroPhysics Riccardi Honders 305mm F3.8 astrograph ( a mouthful!).

Camera QHY600m, AP1600 mount and ZWO autoguiding camera. Astrodon filters and FLI filter wheel.

Only 3 hours 45 but conditions were ideal like my dark site often turns on.


https://pbase.com/image/175195866/large


https://pbase.com/gregbradley/image/175195866


Greg.

[Paul Haese]

Nice detail Greg.

[gregbradley]

Originally Posted by Paul Haese

Nice detail Greg.

Thanks Paul.
The subs that came down were quite high quality which was exciting.

Greg

[Ryderscope (Rodney)]

A classic galaxy Greg. Good to see some work from the big scope

[alpal]

Very nice Paul,
there are some red nebula areas showing - did you use Ha ?

You might able to squeeze a little more detail out of
the brighter areas of the galaxy with some clever processing such as:
using only RGB and no luminance and a blurred layer mask
to control the contrast
and later using a blurred layer mask to blend it back in?

cheers
Allan

[gregbradley]

Originally Posted by Ryderscope

A classic galaxy Greg. Good to see some work from the big scope

Thanks Rodney.

Originally Posted by alpal

Very nice Paul,
there are some red nebula areas showing - did you use Ha ?

You might able to squeeze a little more detail out of
the brighter areas of the galaxy with some clever processing such as:
using only RGB and no luminance and a blurred layer mask
to control the contrast
and later using a blurred layer mask to blend it back in?

cheers
Allan

Yes there is some Ha there. Thanks for the processing tip.

Greg.