Padraic M Posted January 24, 2021 Share Posted January 24, 2021 From last week's play, I've stacked 36x300s H-alpha frames. My 2 hours of RGB lights were unusable. Light pollution almost completely obliterated what little signal was present. City skies with 50% moon just don't suit broadband.On Astrobin here.36x300s Baader 3.5nm HaEsprit 80 with ASI1600mm Pro @ -20C, gain 139, offset 21.AA Starwave 50mm and ASI290mm Mini for guiding.Belt-mod HEQ5 Pro. 8 Quote Link to comment Share on other sites More sharing options...
Carastro Posted January 24, 2021 Share Posted January 24, 2021 Posted by: @padraic-m City skies with 50% moon just don't suit broadband.I concur with that, but I find I can get RGB provided it is combined with Ha and not Luminance which is total rubbish from Bortle 8. So this counts out targets with no Ha.Nice result.Carole 1 Quote Link to comment Share on other sites More sharing options...
paul Posted January 25, 2021 Share Posted January 25, 2021 That's a very atmospheric image none-the-less, mono adds a mood. 1 Quote Link to comment Share on other sites More sharing options...
Padraic M Posted January 25, 2021 Author Share Posted January 25, 2021 So I've reworked this image with the RGB data, creating a Ha(HaR)GB image following more advice from Carole. The Ha really boosts the red channel, as you'd expect. I was hoping that the blue reflection nebulosity would show through; it is present faintly in the blue and green channels, but isn't strong enough to show through other than as a grey smudge.Again, this is 3 hrs Ha, 40 minutes each of RGB for a total of 5 hours integration. DSS, Starnet and Gimp.Astrobin 3 Quote Link to comment Share on other sites More sharing options...
KevS Posted January 25, 2021 Share Posted January 25, 2021 That's really looking good. ? Quote Link to comment Share on other sites More sharing options...
Bob-c Posted January 26, 2021 Share Posted January 26, 2021 Very nice.Bob. Quote Link to comment Share on other sites More sharing options...
MarkAR Posted January 26, 2021 Share Posted January 26, 2021 Stunning in both B&W and colour. 1 Quote Link to comment Share on other sites More sharing options...
Padraic M Posted January 26, 2021 Author Share Posted January 26, 2021 Thanks all! Enjoying learning more about channel combinations, and so far resisting the need to spend on Pixinsight. I don't think I'm at the stage just yet where my choice of tool is the limiting factor ! Quote Link to comment Share on other sites More sharing options...
P Holdsworth Posted January 26, 2021 Share Posted January 26, 2021 Both images are excellent. I think the colour version has come out exceptionally well? 1 Quote Link to comment Share on other sites More sharing options...
Padraic M Posted January 26, 2021 Author Share Posted January 26, 2021 Thanks Paul! Quote Link to comment Share on other sites More sharing options...
Gina Posted January 27, 2021 Share Posted January 27, 2021 Superb!!! ? ? ? ? 1 Quote Link to comment Share on other sites More sharing options...
Padraic M Posted January 27, 2021 Author Share Posted January 27, 2021 Thanks Gina! Quote Link to comment Share on other sites More sharing options...
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