Celestial hemisphere:  Southern  ·  Constellation: Serpens (Ser)  ·  Contains:  Eagle Nebula  ·  IC 4703  ·  M 16  ·  NGC 6605  ·  NGC 6611  ·  Star Queen
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M16- - Eagle Nebula region, Phillip Esce
M16- - Eagle Nebula region
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M16- - Eagle Nebula region

Getting plate-solving status, please wait...
M16- - Eagle Nebula region, Phillip Esce
M16- - Eagle Nebula region
Powered byPixInsight

M16- - Eagle Nebula region

Equipment

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Acquisition details

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Description

A narrow band image taken from my remote setup in Chile
The color combo was created using the Forax Palette created using pixel math.  Please check out this website for more details: https://thecoldestnights.com/2020/06/pixinsight-dynamic-narrowband-combinations-with-pixelmath/
I think it gives some interesting ideas on better narrowband images

Processing in Pixinsight

Crop, DBE, Stretch with HT and star removal (starnet++) on each narrowband image
Used star masks later to add stars back

after Stretch, combine each starless image using the pixel math expressions

NoiseXterminator, red color mask to adjust reds, Curves transformation 

Made a synthetic Lum channel using Ha starless image, then added it using LRGB at 60%

created a star mask by combining all 3 OII, Ha, SII star masks together using RGB combo

inverted star mask and use SCNR to remove magenta

add it back to image using pixel math

star reduction using Bill's Star reduction methods

Comments

Sky plot

Sky plot

Histogram

M16- - Eagle Nebula region, Phillip Esce