Rosette Nebula in SHO with RASA (Robert H. Kutner)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: 12 Mon · LBN 948 · LBN 949 · NGC 2237 · NGC 2238 · NGC 2239 · NGC 2244 · NGC 2246 · Rosette A · Rosette B · Rosette Nebula · Sh2-275 · The star 12Mon

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Rosette Nebula in SHO with RASA

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Rosette Nebula in SHO with RASA

Ha, Sii, & Oiii 6nm Max FR 2" Astronomik filters with a RASA 8 on a CEM40-NUNC mount with a NUNC mini.

Used NINA to acquire on the few clear days we had this past few months, each night targeted 60 x 300s images bin 1x1 @ -10c & 120g, ~65% were usable.

Blink / Subframe Select, Calibrated (60 Dark, 60 Flat, 100 Bias), Star Aligned all images with PixInsight. Used the Normalized Scale Gradient for integration.

For Ha, Sii, & Oiii channels: Cropped, DBE, TGV, MMT (& duplicated the Ha here for the Lum), EZ Soft Stretch, StarNet for star removal, and channel combined using PixelMath (ForaxX palette*). The duplicated Ha -> Lum was Mask Stretched, HDR, LHT, MMT, EZStar Reduction, TGVDenoise, and LRGB Combined with the PixelMath SHO image.

Image was Curves modified w/ masks. Moved to Photoshop to further adjust saturation and contrast, and additional noise reduction. Returned to PI for TGVDenoise, and Resample.

*f is (Ha*Oiii)^~(Ha*Oiii)
R = f*Sii + ~f*Ha
G = f*(.7*Ha + .3*Sii) + ~f*Oiii
B = Oiii

QHY294M Pro/ASI294MM Pro
Cloudy Nights

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This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
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This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
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Distribution of data sources

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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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Amateur hosting facility
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Professional, scientific grade data
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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	5554553
PixInsight job	HUW8KN05CPJLLGCQNMGS1NMPPP08GR3O
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h32m01s.893
RA (top/left)	06h28m16s.115
RA (top/right)	06h32m49s.691
RA (bottom/right)	06h35m47s.312
RA (bottom/left)	06h31m14s.600

Dec (center)	+04°58′37″.26
Dec (top/left)	+05°05′22″.16
Dec (top/right)	+05°53′58″.23
Dec (bottom/right)	+04°51′47″.66
Dec (bottom/left)	+04°03′15″.77

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Rosette Nebula in SHO with RASA

Rosette Nebula in SHO with RASA

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Rosette Nebula in SHO with RASA

Rosette Nebula in SHO with RASA

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