Messier 3 (RGB) (Linda)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 3 · NGC 5263 · NGC 5272

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Messier 3 (RGB)

Link: https://lindasastronomyadventures.space/2021/03/21/m3/

Powered byPixInsight

Messier 3 (RGB)

Link: https://lindasastronomyadventures.space/2021/03/21/m3/

I've always found globular clusters to be more interesting visually than photographically but this image may be changing my mind!

Processing steps:

for each of the R, B and G masters:

dynamic crop

mure denoise

combined masters:

channel combination

dbe

pcc

histogram transformation

HDR multiscale transform

curves (contrast & color)

adv sharpening script

It was the HDR multiscale transform that was the star of the show here. I stretched until the core was nearly saturated and then HDRMT rescued all of that detail and took my breath away with how much was visible. I'd never found much use for that process in my other images since the dynamic range isn't very large in most deep sky objects but for globs the difference between the extremities and the core is quite large and HDRMT did its magic bringing both into view simultaneously. Of course, this trades off that intense central core for a better resolved core but that was what I was hoping to present in this image so it worked out well.

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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.

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.
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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	4314140
PixInsight job	UUC4L9B7Z3IVHV9KCQKWPWR8BFPWRBRF
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	13h42m09s.42
RA (top/left)	13h44m52s.78
RA (top/right)	13h39m22s.28
RA (bottom/right)	13h39m27s.22
RA (bottom/left)	13h44m54s.86

Dec (center)	+28°22′35″.7
Dec (top/left)	+28°50′06″.9
Dec (top/right)	+28°49′05″.3
Dec (bottom/right)	+27°54′53″.1
Dec (bottom/left)	+27°55′54″.9

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Messier 3 (RGB)

Messier 3 (RGB)

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Messier 3 (RGB)

Messier 3 (RGB)

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