NGC281 Pacman, work in progress

[jjongmans]

Managed to spend some time on this object before the clouds came back.

3x 2min RGB (star color)

3x 20min 3nm Ha

3x 20min 3nm OIII

2x 20min 3nm SII

Now I'm waiting for the clouds to leave again...

Thank you for watching!

[Scott]

wow, thought i was going to fall in

Scott

[swag72]

Very nice - I like that a lot - Great detail and beautifully processed.

Actually, I keep coming back to this - How you get that level of detail with such a small amount of data, for me is astounding, no make that phenomenal.

[ollypenrice]

Delicate.

Three nanometer? That's showing off!! Hey, it works, though...

Olly

[Gina]

Wonderful

[kruska]

_{explicit hubble, excellent pacman}

[farunj]

Awesome image!!

[jjongmans]

Actually, I keep coming back to this - How you get that level of detail with such a small amount of data, for me is astounding, no make that phenomenal.

I think it is a combination of good filters (3nm delivers great contrast), reletively fast optics (f/5.3) and PixInsight magic

[swag72]

PI magic eh?

How did you blend it in PI? I had to resort to CS5 for my narrowband stuff as I can not work out how to achieve the colour selection in PI that is so easy to do in CS5.

[jjongmans]

Create a standard HST image (SII/Red - Ha/Green - OIII/Blue) with PixelMath.

And then it's basically the same, just HistogramTransformation (levels) and CurvesTransformation (curves). Keep the preview window open and start adjusting the image, small steps.

[swag72]

Ahh, PixelMath, I was afraid you were going to use THAT word!! Can't blend a thing in PixelMath!!! Hey ho!

[jjongmans]

You need three linear images; Ha, OIII and SII

Open PixelMath

Deselect "Use a single RGB/K expression"

Select "Create new image"

Select "RGB Color"

Assign SII to "R/K"

Assign Ha to "G"

Assign OIII to "B"

Apply

Done, you'll get a new image in Hubble palette...

[swag72]

Got that far!! How do you change the colours? I'm looking for somethng similar to the CS5 colour selection tool where you can adjust the sliders to change the make up of the colours.

[jjongmans]

That is something I do with CurvesTransformation. Just select a color (R, G or B and adjust the curve, with the preview you can see where you're going.