Celestial hemisphere:  Southern  ·  Constellation: Serpens (Ser)  ·  Contains:  Eagle nebula  ·  M 16  ·  NGC 6611
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M16 Tone Mapping and Takahashi 180ED, Jerry Yesavage
M16 Tone Mapping and Takahashi 180ED
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M16 Tone Mapping and Takahashi 180ED

Equipment

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Acquisition details

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Description

Thanks to Equinoxx and Metsavainio techniques. This is still crude but I tried to do almost all of it in PixInsight. This is what the workflow looked like:

Subframe select and BatchPreprocess Tak images in PI.

No-star the stacked H O and S images with Straton. Save them back into PI as FITs images.

Manually stretch using HT the de-starred images in PI using HT (next time will try masked stretch)

Create "Tone_Map_No_Stars image in PI using PixelMath and SHO = RGB.

Create Luminosity from H-alpha image (O and S luminosities tried but did not add much as they overlap)

Use Multichannel Synthesis AIP script to produce RGB image.

Create mask of core

Stretch core with LocalHisoEq

Invert mask and noise reduce periphery with AtrWaveletTransform

Manually stretch and clip with HT

Comments

Sky plot

Sky plot

Histogram

M16 Tone Mapping and Takahashi 180ED, Jerry Yesavage

In these public groups

Cloudy Nights

In these collections

Messier Objects