Rosette Nebula - SH 2-275, CTB 21, Caldwell 49 - 3x2 panels mosaic DNB+RGB stars (patrice_so)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: NGC 2237 · NGC 2238 · NGC 2239 · NGC 2246 · NGC 2252 · Rosette A · Rosette B · Rosette Nebula · The star 12 Mon

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Rosette Nebula - SH 2-275, CTB 21, Caldwell 49 - 3x2 panels mosaic DNB+RGB stars

Revision title: Softer processing - updated stars - balanced BG

Powered byPixInsight

Rosette Nebula - SH 2-275, CTB 21, Caldwell 49 - 3x2 panels mosaic DNB+RGB stars

Revision title: Softer processing - updated stars - balanced BG

This is my second capture of the Rosette nebula, this time as a 3x2 panels mosaic. The panels were stacked in SIRIL before being assembled in Pixinsight using photometric mosaic. I assembled a RGB, an Ha and an Oiii layer that were then processed as in the case of a usual DNB+RGB image in pixinsight. The processing headline includ for the RGB panel gradient correction, solving, SPCC, starnet2 then inital autostretch applied to the star layer, star reduction with Bill's scripts and tuning of saturation (less blue). The Ha and Oiii layers were gradient extracted, linear fitted and assembled using in pixelmath stretch, denoise and proper processing.

I warmly thank here @Brian Puhl and @andrea tasselli for their valuable inputs on the forum.

I hope that you like it. Comments and criticisms are most welcome.

Clear skies !

Original
Final
C

C

Title: Softer processing - updated stars - balanced BG

Description: New version following Brian Puhl's and Tndrea Tasselli's advices. Thanks a lot.
- softer color processing
- reduction of local contrasts and sharpening
- natural stretch of star and correction with Bill's method 2.

Uploaded: ...

Fast Newtonians
ZWO ASI 294MC PRO
Imagers of Switzerland

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Status	Basic success
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Astrometry.net job	9483066
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Rosette Nebula - SH 2-275, CTB 21, Caldwell 49 - 3x2 panels mosaic DNB+RGB stars

Revision title: Softer processing - updated stars - balanced BG

Rosette Nebula - SH 2-275, CTB 21, Caldwell 49 - 3x2 panels mosaic DNB+RGB stars

Revision title: Softer processing - updated stars - balanced BG

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Rosette Nebula - SH 2-275, CTB 21, Caldwell 49 - 3x2 panels mosaic DNB+RGB stars

Revision title: Softer processing - updated stars - balanced BG

Rosette Nebula - SH 2-275, CTB 21, Caldwell 49 - 3x2 panels mosaic DNB+RGB stars

Revision title: Softer processing - updated stars - balanced BG

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