Andromeda LRGBHa (Scott Badger)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224 · The star 32And

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Andromeda LRGBHa

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Andromeda LRGBHa

This and a straight LRGB version posted separately are my first effort with decent data that I got using iTelescope (my own gear still on backorder) and a second PI workflow. Lots to go back and work on, but for the moment I need to move on and spend hours and hours staring at something different….. I’m curious, though, what methods others use to add Ha, or any narrowband I guess, to LRGB images, particularly with Pixinsight. I started off following the Light Vortex tutorial, but wasn’t able to create a red channel/Ha image like was shown and ultimately wasn’t getting the effect I wanted using the equation given to add it back to the red channel. So instead, I created a range selection mask from the Ha image, subtracted a star mask, cloned out the remaining halos and finally depreciated the core as much as possible without too much impact on the structures to come up with a mask to target the Ha a little better when adding it to the red channel.

Images used were pre-calibrated.

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	Image of the day	Top pick	Top pick nominations	Total submitted
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Status	Basic success
Started	...
Astrometry.net job	4199200
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Andromeda LRGBHa

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Andromeda LRGBHa

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