M81 - First Play with PixInsight

[AlistairW]

Hello,

This is my first foray in to   PI - so far enjoying it. M81 below 4 hours each of RGB combined. I have 4 hours of Lum I need to figure out how to work in.

Thanks

Alistair

[ChrisEll]

I see you've sorted the alignment, some nice detail there. I don't do LRGB but there's a LRGBCombination process but I guess you know that.

[wimvb]

That's a very good result.

Toget the best out of the lum: stretch it such that it has the same background and overall lightness as RGB. Then use the LRGB combination process (turn off RGB checkboxes). Apply to a preview first, while adjusting the parameters. Then apply to the image, with chroma noise reduction.

You can do deconvolution, HDRtransformation etc on L, but you don't need to do it on RGB. But I think you can safely increase the red saturation a bit to lift the Ha jets from M82.

Good luck, and have fun

[Sunshine]

Thats a beautiful capture, very nicely defined spiral arms and nebulous pink points, your tracking must be bang on!

[AlistairW]

Thanks for all the comments :-)

Wim - I have added in the Lum the best I know how, and looked at Colour Saturation with the Hue Shift to boost the red. Might have gone too far, but can definitely see the jets in M82 better. Thanks for the suggestion.

I feel I have taken a step forward today

Alistair