M3 LRGB

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: HD119025 · HD119081 · HD119391 · HD119477 · HD119686 · HD119748 · M 3 · NGC 5263 · NGC 5272

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M3 LRGB

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M3 LRGB

This was a target of opportunity at the end of the night as my main target dipped behind the trees but, there was still time before sunrise. Only gathered about 30 minutes on each channel of RGB data.

Processing in PixInsight:=MsoNormalWBPP for stacking, registering, local normalization, and image integration. Channel combination used to combine the RGB masters.
ABE applied to the resulting RGB image prior to color correction with SPCC. SCNR was used to remove the excess green.
Light application of NoiseXterminator prior to stretching with STF and HT. Luminance mask applied prior to a curves adjustment on the stars for saturation.
HDRMultiscale was used to help knock down the blown out core of the cluster.
Inverted the mask and made some contrast adjustments to the background prior to a final application of NoiseXterminator.

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	Advanced success
Started	...
Astrometry.net job	6828064
PixInsight job	IPYLA51QQL9LVD05TKYBDXOGOYAH4BPU
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h42m07s.89
RA (top/left)	13h46m55s.80
RA (top/right)	13h44m59s.99
RA (bottom/right)	13h37m15s.70
RA (bottom/left)	13h39m20s.93

Dec (center)	+28°22′47″.6
Dec (top/left)	+27°25′59″.9
Dec (top/right)	+29°39′17″.8
Dec (bottom/right)	+29°18′55″.2
Dec (bottom/left)	+27°06′01″.1

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M3 LRGB

M3 LRGB

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Image Index:

Contribution Index (beta):

M3 LRGB

M3 LRGB

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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