M81-M82 (Valerio Avitabile)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's Galaxy · Cigar Galaxy · M 81 · M 82 · NGC 3031 · NGC 3034

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M81-M82

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M81-M82

Subject for a long time pursued over the years but never actually completed due to the most disparate reasons. M81 and M82 respectively Bode and Cigar are 2 galaxies located in the Big Dipper distant on average from our solar system about 11.7 million light years, a measure that makes it one of the closest groups of galaxies to our Local Group. M81 and M82 are now separated by about 300,000 light years, but 250 million years ago there was a meeting between the two galaxies, and a large amount of gas poured into M82, particularly its central regions. This interaction resulted in a sharp increase in star formation in both galaxies. Still the tidal forces of M81 deform M82 and enormously increase the phenomena of star formation making it a "Starburst" galaxy causing the formation of super clusters. M81 is also known as the Bode Galaxy or NGC 3031, it is a rather bright spiral galaxy was first observed in 1774 by Johann Elert Bode, from which it takes its name, later in 1781 Charles Messier inserted it in his catalog, M82 also known as "Cigar Galaxy" or NGC 3034 is an active galaxy like its companion M81, this galaxy reveals a powerful magnetic field and is a source of intense radio waves. A huge explosion is taking place in its center which has now lasted for 1.5 million years, where fragments of incandescent matter move away from the galactic core at a thousand km / s, the mass involved in the explosion is equivalent to five million suns. It was also discovered by Bode in 1774.

First time for me in the world of monochrome, as this photo was taken, the luminance, with the new entry QHY294M PRO combined with an RGB shot kindly offered by my friend Edoardo Paparelli

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	Distinct awarded users	Total awarded images
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Top picks
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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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Star trails
Northern lights
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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
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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.

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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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	4655303
PixInsight job	CG19PZ34OPWBHX5COFA5M938WXHWVMXQ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h55m50s.468
RA (top/left)	09h53m11s.574
RA (top/right)	09h52m31s.706
RA (bottom/right)	09h58m21s.668
RA (bottom/left)	09h59m17s.883

Dec (center)	+69°20′29″.24
Dec (top/left)	+69°49′51″.39
Dec (top/right)	+68°53′12″.13
Dec (bottom/right)	+68°50′52″.71
Dec (bottom/left)	+69°47′32″.88

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M81-M82

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