Seagull Head in RGB w NB SynLum (James Sokolowski)

Celestial hemisphere: Southern · Constellation: Monoceros (Mon) · Contains: IC 2177

Seagull Head in RGB w NB SynLum, James Sokolowski

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Seagull Head in RGB w NB SynLum

Revision title: Seagull Nebula -- RGB w/ NB SynLum v2

Powered byPixInsight

Seagull Head in RGB w NB SynLum

Revision title: Seagull Nebula -- RGB w/ NB SynLum v2

Three nights of data w/ my CDK 14. Took RGB & Narrow Band. Formed a Synthetic Luminance out of two copies of Ha and one of SII w/ PI ImageCalibration, where the weights were by PSF Signal Weight were about 0.7 for Ha and 1.0 for SII. This SynLum had nice detail that was sharpened using stellar profiles using BlurXTerminator, then later using 8.0 pixel size also in BXT. I'm been preparing stars for screening into imagery using PI PixelMath by stretching w/ a combination of substreches of HT, then ArcSinh, then HT. I then form a blue mask w/ the stars and increase the saturation of blue stars, as their color tends to get lost amid all the nebular colors. Then I smooth color by taking star luminance as a mask and using a bit of convolution.

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Title: Seagull Nebula -- RGB w/ NB SynLum v2

Description: I toned down the saturation in some of the pinks.

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Texas Astronomy
Central USA

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Seagull Head in RGB w NB SynLum

Revision title: Seagull Nebula -- RGB w/ NB SynLum v2

Seagull Head in RGB w NB SynLum

Revision title: Seagull Nebula -- RGB w/ NB SynLum v2

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Seagull Head in RGB w NB SynLum

Revision title: Seagull Nebula -- RGB w/ NB SynLum v2

Seagull Head in RGB w NB SynLum

Revision title: Seagull Nebula -- RGB w/ NB SynLum v2

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