Sh2-132 aka The Lion Nebula in Narrowband and RGB Combined

The Lion Nebula - Sh2-132 - The above image is the RGB image with H-Alpha added to the Red and OIII added to the Green and Blue all using lighten mode. The OIII was blended at 50% in each channel, the H-Alpha at 100%.
Camera: Moravian G4 w Astrodon Gen II LRGB filters
Scope: Astro-Physics AP155EDF w 4" FF
Mount: SB Paramount MX
Guiding: SBIG ST402ME on Borg 60 guidescope
10/10/8 x 10min each for RGB
23 x 20 min H-Alpha, 22 x 20 min OIII
Lucknow, Ontario, Canada
June 2023
Images captured with TheSkyX
Session orchestrated by CCD-Commander
Calibration and processing of the RGB and Narrowband in PixInsight
RGB combine with the NB data done two ways all in Photoshop plus some gradient removal from the RGB in Photoshop CC

Click on the image to see it enlarged.

Here is an alternative way of combining the NB with RGB - done as HOO + RGB (added over top using Lighten Blend Mode)



Here is the pure RGB image:



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