M81 and M82 (Glenn Diekmann)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's galaxy · Bode's nebulae · Cigar galaxy · M 81 · M 82 · NGC 3031 · NGC 3034 · PGC 2724146 · PGC 2726822 · PGC 2728721 · PGC 2730379 · PGC 2730409 · PGC 2730709 · PGC 2731294 · PGC 2732102 · PGC 2732338 · PGC 2732720 · PGC 2732797 · PGC 2733060 · PGC 28505 · PGC 28529 · PGC 28757 · PGC 28848 · PGC 3086325 · PGC 3097961

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M81 and M82

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M81 and M82

The M 81 and M 82 galaxies are located about 12 million light-years away in the constellation Ursa Major. Their circumpolar location makes them visible mainly to northern observers. M 81 has the common name Bode's Galaxy due to its discovery in 1774 by Johann Elert Bode. It was added to Charles Messier's catalog in 1779. At its core is a 70 million-solar-mass black hole.

M 82, also called the Cigar Galaxy, is a prototypical starburst galaxy. The intense, star-forming activity is thought to have been triggered by a close interaction with M 81. Its distinctive photographic appearance is due to the jets of ionized hydrogen gas shooting out from its center.

Original
B
Final
C

B

Description: A bit brighter.

Uploaded: ...

C

Description: Re-stretched the image for better presentation of nebulosity.

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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	3235425
PixInsight job	O9MV0UAPEZ1ZHLLPBL6OU1X74U2UTE7J
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	09h55m46s.20
RA (top/left)	10h00m10s.60
RA (top/right)	10h02m20s.52
RA (bottom/right)	09h51m03s.67
RA (bottom/left)	09h49m32s.94

Dec (center)	+69°19′13″.8
Dec (top/left)	+68°36′07″.6
Dec (top/right)	+69°54′27″.8
Dec (bottom/right)	+70°01′53″.0
Dec (bottom/left)	+68°43′06″.9

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M81 and M82

M81 and M82

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Image Index:

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M81 and M82

M81 and M82

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