NGC 2244 - Rosette Nebula (Kyle Butler)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: NGC 2237 · NGC 2238 · NGC 2239 · NGC 2246 · NGC 2252 · Rosette A · Rosette B · Rosette Nebula · The star 12Mon

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NGC 2244 - Rosette Nebula

Powered byPixInsight

NGC 2244 - Rosette Nebula

Exposure Details (2 panel mosaic; sub exposure numbers are per panel)

27x 300s Ha (111 gain, 10 offset)

27x 300s OII (111 gain, 10 offset)

27x 300s SII (111 gain, 10 offset)

13.5 hours total integration time

Processing

Processed each channel individually

Frames calibrated and stacked in PixInsight, drizzle 2x

DynamicCrop and DynamicBackgroundExtraction on each channel for each panel

Rough mosaic alignment using StarAlignment with Mosaic - Union; done on each channel separately

Finer mosaic alignment using StarAlignment with Mosaic - Separate to produce aligned individual panels per channel

Final Mosaic merge on resulting frames using GradientMergeMosaic

MultiscaleLinearTransform noise reduction on each merged mosaic channel w/ Luminance mask

Stretched each channel to non-linear using HistogramTransformationFunction

Combined channels using PixelMath dynamic expression (R = (OIII^~OIII)*SII + ~(OIII^~OIII)*Ha; G = ((OIII*Ha)^~(OIII*Ha))*Ha + ~((OIII*Ha)^~(OIII*Ha))*OIII; B = OIII)

ColorSaturation with masking

CurvesTransformation

Minor final touch ups in photoshop (Local contrast enhancement, star de-emphasis)

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

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
Image of the day
Top picks
Top pick nominations

Distribution of subject types

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
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
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	Basic success
Started	...
Astrometry.net job	4058919
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

NGC 2244 - Rosette Nebula

NGC 2244 - Rosette Nebula

Equipment

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Description

Comments

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Image Index:

Contribution Index (beta):

NGC 2244 - Rosette Nebula

NGC 2244 - Rosette Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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