M8: Lagoon Nebula, in narrowband (Jonathan Piques)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: Hourglass nebula · IC 1274 · IC 1275 · IC 4684 · IC 4685 · Lagoon nebula · M 8 · NGC 6523 · NGC 6526 · NGC 6530 · NGC 6546 · NGC 6559 · The star 11Sgr · The star 4Sgr · The star 7Sgr · The star 9Sgr

M8: Lagoon Nebula, in narrowband, Jonathan Piques

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M8: Lagoon Nebula, in narrowband

Powered byPixInsight

M8: Lagoon Nebula, in narrowband

Processing:

BatchPreProcessing script to calibrate

CosmeticCorrection

StarAlign to register

SubframeSelector script to (80/20 FWHM and SNR weightings)

ImageIntegration

StarAlignment and Dynamic Crop

Dynamic Background Extraction

TGV Noise Reduction using a Lum mask

Multiscale Linear Transform for a little more noise reduction

Linear Fit

Combined individual masters in PixelMath

SCNR green to remove the green cast

Background Neutralization

MaskedStretch

Histogram Transformation

CurvesTransformation to enhance contrast and Saturation

Extract Lum and MSLT to create a mask, and then MorphologicalTransformation to shrink down some stars

MultiScaleLinearTransform for sharpening

Unsharp Mask and some more CurvesTransformation for contrast in select places

Save down to jpg

All in all, I'm pretty happy with this, but I think it could be better. I feel like I rushed things a bit: I had wanted to get another 6 hours of data on OIII and SII, and I also rushed through processing and didn't do some things I normally do (deconvolution, for one). I may take another whack at it if I get that extra data. But for now, I'm happy enough :-)

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	Image of the day	Top pick	Top pick nominations	Total submitted
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Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced failed
Started	...
Astrometry.net job	2143870
PixInsight job	T123N895OT3FG5F4E0RXYI7AZHF86BPA
PixInsight queue size	n/a
PixInsight stage	PLATE_SOLVING_IMAGE

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M8: Lagoon Nebula, in narrowband

M8: Lagoon Nebula, in narrowband

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Image Index:

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M8: Lagoon Nebula, in narrowband

M8: Lagoon Nebula, in narrowband

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Description

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Sky plot

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