M 41 (Roberto Marinoni)

Celestial hemisphere: Southern · Constellation: Canis Major (CMa) · Contains: M 41 · NGC 2287 · The star 12 CMa

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M 41

Link: https://www.robertomarinoni.com/

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M 41

Link: https://www.robertomarinoni.com/

M 41 is a bright open cluster in Canis Major constellation, also visible with naked eye a little south-west of Sirius.
It is located at a distance of 2300 light years: so considering its apparent dimension of 38’, we have that its phisical extension is about 25 light years.
Its estimated age is in the range 190/240 million years: it is a relatively young cluster, and indeed it contains several white/blue-white stars, but also some yellow stars.

I obtained this image from my backyard, which has a very bad sky in general (light pollution, humidity), but particularly for this object due to its low elevation on the horizon, so just in the directions of many street lamps.
The master frame RGB had horrible coloured gradients, but with some precautions in post processing (and also keeping the sky a little dark) I was able to obtain at least a decent image.

Imaged with Voyager
Astrofili Dalai Lama
Imagers of Italy
Messier Objects
Open Star Clusters

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	Distinct awarded users	Total awarded images
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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
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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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.

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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	Basic success
Started	...
Astrometry.net job	9426741
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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