Rosette nebula in narrow-band, reprocessed (Randy Pfeiffer)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: 12 Mon · HD259135 · HD45911 · HD46006 · HD46056 · HD46057 · HD46106 · HD46107 · HD46108 · HD46149 · HD46150 · HD46180 · HD46201 · HD46202 · HD46223 · HD46324 · HD46375 · HD46424 · HD46469 · HD46484 · HD46517 · HD46612 · LBN 943 · LBN 948 · LBN 949 · NGC 2237 · NGC 2238 · NGC 2239 · NGC 2246 · NGC 2252 · And 5 more.

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Rosette nebula in narrow-band, reprocessed

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Rosette nebula in narrow-band, reprocessed

This image is made from the same data set as the previous version posted a few days ago. This version shows the content of all three filters, in particular the blue tones near the center of the nebula. The image was created using PI's PixelMath process and SHO equations posted by Juan on the PI forum. Each color channel was individually processed using BlurXTerminator to have the same median FWHM, then the O3 and S2 channels were Star Aligned against Ha. The Ha channel was used to LinearFit the O3 and S2 channels before applying the SHO equations with PixelMath. The RGB output image was stretched and its saturation increased. In order to bring out the blue content, it was necessary to use the Hue Adjustment of CurvesTransformation. I'm still not able to reproduce the gorgeous turquoise found in Hubble images and hope to find the key soon.

This image was made with an OSC, the ASI2600MC. If you pixel-peek you'll find some issues, but overall I hope this image encourages everyone with an OSC to give narrow-band a try. The results are fascinating.

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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 success
Started	...
Astrometry.net job	8639854
PixInsight job	W8Q9CQT8GK42EEOL0I6H5AV3XN3N88OF
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h31m47s.275
RA (top/left)	06h29m41s.694
RA (top/right)	06h35m44s.540
RA (bottom/right)	06h33m53s.680
RA (bottom/left)	06h27m50s.626

Dec (center)	+05°00′45″.61
Dec (top/left)	+04°09′53″.83
Dec (top/right)	+04°51′12″.68
Dec (bottom/right)	+05°51′34″.28
Dec (bottom/left)	+05°10′11″.49

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Rosette nebula in narrow-band, reprocessed

Rosette nebula in narrow-band, reprocessed

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Rosette nebula in narrow-band, reprocessed

Rosette nebula in narrow-band, reprocessed

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