Rosette Closeup....

[RichieJarvis]

Hi All,

This is 6 x 600 seconds of Ha and 6 x 600 seconds of OIII. I really like the colours that have come out in this

Scope was my Astro Pro 102ED, using an SXV-H9 and Astronomik 13nm Ha and OIII filters.

(click to enlarge)

Cheers,

Richie

[centroid]

That really is 'close in' Richie, very nice indeed.

Dave

[barkis]

Holy from Holy Richie, that is a huge and most splendid piece of work. I like the colour too, although I mostly prefer to see this object in Mono.

This looks as though it was at around f7.

Ron.

[Psychobilly]

Super Richie

Billy...

[George]

Closeup certainly works on the rosette, the detail on the central void is amazing.

Great image Ritchie

[Deneb]

Wow ! outstanding picture, another POW :mrgreen:

[MikeD]

Great result, loads of nice detail. :)

Mike.

[MartinB]

Great image Richie. Love the wisps of nebulosity picked out by the constrasting narrow bands. How did you put the colour together?

[RichieJarvis]

Thanks all...

Yes - this was at F/7 through the Astro Professional 102ED.

How did I get the colour? In CS2, Loaded the Ha into the red channel, loaded the OIII into the blue channel, used Noel Carboni's Actions to synthisize green (it takes the red and blue channels and blends them), then stretched all three channels whilst maintaining white stars. This was only an hour through each filter, hence the noise.

I plan to stick with this object whilst its available, and see if I can grab a 4 frame mosaic in a similar fashion, but in order to reduce noise, I think I am going to have to shoot 2 hours through each filter, so it will be a while. Of course, the other option is to wait until I get my new focuser for the F/4 GSO-200 - that should reduce the exposure time for each filter

I am also going to reprocess with my dark frame removed (that was a quick process with no calibration), and will post up the results later on.

Cheers,

Richie

[RichieJarvis]

Here is the redone version with darks removed, and a bit more sympathetic smoothing.

(click to enlarge)

Hope you like it!

Cheers,

Richie