NGC 7380 - Wizard Nebula (Paul Ricker)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: LBN 506 · LBN 511 · NGC 7380 · PK107-00.1 · Sh2-142 · Sh2-143

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NGC 7380 - Wizard Nebula

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NGC 7380 - Wizard Nebula

NGC 7380, the Wizard Nebula, in Cepheus. NGC 7380 is an HII region and young open cluster about 2.6 kpc away. At the center of the cluster lies a close binary called DH Cephei consisting of two O stars with a total mass between ~ 40 and 60 solar masses. Although the binary is detached, with a 2.1 d orbital period they have nontrivial tidal distortions and produce X-rays, likely due to colliding winds.

This is my first attempt at combining Halpha, OIII, and RGB data. First separately combined HOO and RGB into two files with Photoshop. With the HOO file, rescaled the Halpha by 56% to account for shorter exposure compared to the OIII image. Then used the Channel Mixer to replace the green channel with 80% OIII+20% Ha and the blue channel with 85% OIII+15% Ha. Then processed normally (stretching, AstroFlat, local contrast, sharpening, noise reduction, etc.). Processed the RGB file normally, increasing star color several times and reducing the stars a couple of times. Composited with the processed HOO file, using the RGB as a 50% hue contribution, and tweaked color balance and curves. Did some final tweaks to shadows, sharpening, and noise reduction in Photoshop Elements.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	5050535
PixInsight job	1C157Y41E1L9WWB4656DCA6JOEJOAVDT
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h46m42s.44
RA (top/left)	22h51m39s.19
RA (top/right)	22h47m56s.45
RA (bottom/right)	22h41m38s.42
RA (bottom/left)	22h45m32s.40

Dec (center)	+58°02′25″.7
Dec (top/left)	+57°32′23″.3
Dec (top/right)	+58°51′12″.9
Dec (bottom/right)	+58°31′49″.3
Dec (bottom/left)	+57°13′40″.9

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NGC 7380 - Wizard Nebula

NGC 7380 - Wizard Nebula

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NGC 7380 - Wizard Nebula

NGC 7380 - Wizard Nebula

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