NGC 6357 (SHORGB - True Color Rendering) (Alex Woronow)

Celestial hemisphere: Southern · Constellation: Scorpius (Sco) · Contains: B258 · NGC 6357 · Sh2-11 · the War and Peace Nebula

NGC 6357 (SHORGB - True Color Rendering)

NGC 6357 (‘True Color’ rendering)

OTA: TAO 150 (f/7.3)

Camera: FLI - ML16200 (1.13 arcseconds/pixel)

Observatory: Deep Sky West, Chile

EXPOSURES:

…Red…………..20 x 300 sec.

…Blue………….19 x 300

…Green……….23 x 300

…H……….….….14 x1800

…S……….….…..12 x 1800

…O………..…….13 x 1800

Total exposure: 24.7 hours

Image Width: 1.5 deg

Processed by Alex Woronow (2020) using PixInsight, Skylum, Topaz, SWT

This nebula hosts many massive young stars that, along with many supernovae, have carved a complex of bubbles and streamers in the parent cloud. The stars have ionized the chemical elements within the cloud, primarily hydrogen, whose radiation gives the cloud its colors. Prominent among the young stars is the open cluster Pismis 24-1. The stars of this cluster are the yellowish ones near the center of the fov. They probably are young, blue stars, with the color of the light altered by passing through the gases of their surrounding bubble. Just above that cluster is one of the brightest appearing regions where strong oxygen emissions (teal-colored) mixed with strong red hydrogen emissions creates an almost white toned region. These young stars are doing a job on their nearby parental gasses!

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Status	Advanced success
Started	...
Astrometry.net job	3921981
PixInsight job	8AP85WF06F1WP8E552TPJ2YZ2QGSZGQ9
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	17h24m42s.20
RA (top/left)	17h28m20s.16
RA (top/right)	17h21m35s.68
RA (bottom/right)	17h21m01s.38
RA (bottom/left)	17h27m51s.27

Dec (center)	-34°12′00″.4
Dec (top/left)	-33°42′12″.1
Dec (top/right)	-33°34′04″.7
Dec (bottom/right)	-34°41′20″.7
Dec (bottom/left)	-34°49′37″.1

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NGC 6357 (SHORGB - True Color Rendering)

NGC 6357 (SHORGB - True Color Rendering)

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NGC 6357 (SHORGB - True Color Rendering)

NGC 6357 (SHORGB - True Color Rendering)

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