Trio de Leo (Iñigo Gamarra)

Trio de Leo

Hello friends, I hope everyone is doing well.

The first of the season, not without difficulties, but I will not complain this time 😜, because the result meets my objectives for this first, a relatively flat background without having to darken it and I also wanted to see the tidal tail of the galaxy "hamburger ".

I tried to remove the gradients in the monochrome channels before combining but this did not work, also run the Script 'MureDenoise "it works very well in the monochrome channels without loss of details, but after combining the gradients were not eliminated correctly, I finally combined the RGB channels and after a few tries with DBE I was able to remove the gradients quite well. Next I calibrated the color with two different methods to take advantage of both color spaces (Background Neutralization / Color Calibration and Photometric Calibration), and combined them at 50 / 50. Green noise reduction.

Also perform star repair (HSV) and impulse of the C and S curves. To stretch the image use the ArcSinh process tool in small proportion and masked stretch, this helps me to preserve the color.

Next, add the luminance using the CieLab color space of the channel combination process and in a clone with LRGB combination and then join them again at 50/50. A few more adjustments to enhance color and structure. I didn't like the stars as much as I did before combining, so I removed them and added my starless image to the RGB image by scaling the result.

Greetings to all my good friends from AB, take care of yourselves and enjoy yourself.

Íñigo Gamarra CS

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Description: +4 horas de H-alpha.
48x300

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Status	Advanced success
Started	...
Astrometry.net job	4336629
PixInsight job	QAVS72L7AY81QU7AA5Q50Q78NFL8DHNL
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	11h19m53s.71
RA (top/left)	11h18m11s.90
RA (top/right)	11h18m12s.95
RA (bottom/right)	11h21m34s.83
RA (bottom/left)	11h21m34s.86

Dec (center)	+13°18′13″.3
Dec (top/left)	+13°51′31″.6
Dec (top/right)	+12°44′47″.1
Dec (bottom/right)	+12°44′51″.7
Dec (bottom/left)	+13°51′36″.10

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