Alex Posted April 13, 2021 Share Posted April 13, 2021 My first attempt at LRGB. Made a few mistakes with the initial data so grabbed some more last night.  Got about an hour of Luminance,  20 mins of RGB and an hour of Ha. I have no idea how to use the Ha data in LRGB yet so thats the next job 🙂   7 Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted April 13, 2021 Share Posted April 13, 2021 37 minutes ago, Alex said: My first attempt at LRGB. Made a few mistakes with the initial data so grabbed some more last night.  Got about an hour of Luminance,  20 mins of RGB and an hour of Ha. I have no idea how to use the Ha data in LRGB yet so thats the next job 🙂   Looking good, some nice detail in there. If you are processing with Pixinsight, combining Ha and RGB is straightforward using the NBRGBCombination script. Quote Link to comment Share on other sites More sharing options...
Alex Posted April 13, 2021 Author Share Posted April 13, 2021 Just now, AstronomyUkraine said: Looking good, some nice detail in there. If you are processing with Pixinsight, combining Ha and RGB is straightforward using the NBRGBCombination script.  Just found that script 🙂 Will have a play tomorrow as busy building new telescope rig 🙂 Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted April 13, 2021 Share Posted April 13, 2021 6 minutes ago, Alex said:  Just found that script 🙂 Will have a play tomorrow as busy building new telescope rig 🙂 It's self explanatory. Load the RGB image into the appropriate box, the default Bandwidth is 100, I set it to 200, it seems to work well, but you can play around with that setting. The Ha goes into it's own box, set the correct bandwidth for the filter, I leave the scale at 1.2. Press the NBRGB button, you will see the preview, if you are not happy with the result, adjust the settings in the RGB bandwidth again and press NBRGB button once more. Once you are happy, press the OK button, and you will have a new NBRGB image. I found using linear images produces the best results.  Brian  1 Quote Link to comment Share on other sites More sharing options...
MarkAR Posted April 13, 2021 Share Posted April 13, 2021 Very nice, colours come through really well. I didn't know there was much Ha to be seen in the Triplet. 1 Quote Link to comment Share on other sites More sharing options...
PeterBolt Posted April 14, 2021 Share Posted April 14, 2021 Lovely image Quote Link to comment Share on other sites More sharing options...
Padraic M Posted April 14, 2021 Share Posted April 14, 2021 Looking very good! The Ha will be mixed with the Red channel so will reduce the red colouring somewhat, while highlighting any Ha areas. As Mark says above, not sure what Ha features there are in the Triplet, but I think you will get some in M66. 1 Quote Link to comment Share on other sites More sharing options...
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