Messier 81 (Walter Leonhard Schramböck)

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

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Messier 81

Revision title: Re-edit

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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Messier 81

Revision title: Re-edit

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

In this session I figured out that my newly acquired old G11 mount performs better without guiding, so I tried it completely unguided this time, and well, we are getting closer to unleash the power of my 10" newton.

Johann Elert Bode discovered this galaxy in 1774, so it is also known as Bode's Galaxy. It is located 11.6 million light-years from Earth in the constellation Ursa Major and has an apparent magnitude of 6.9 what makes it one of the brightest galaxies in our nightsky. A black hole of 70 million solar masses resides at the center of M81 and is about 15 times the mass of the Milky Way’s central black hole.

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B

Title: Re-edit

Description: After many suggestions I made complete re-edit for this image.

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ZWO ASIAir Users
Austria Astrophotography
N.I.N.A. Users
Reflecting Telescope Group
Messier Objects
The OSC Club (One Shot Camera)
Deep Sky Northern Hemisphere
Cooled Color Cams
ASI533MC Pro

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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.

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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	Advanced success
Started	...
Astrometry.net job	9180486
PixInsight job	EY2WHHP4J8TOWBZM0GFD1VY4IAXJB0TI
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h55m31s.890
RA (top/left)	09h58m36s.969
RA (top/right)	09h52m40s.635
RA (bottom/right)	09h52m29s.752
RA (bottom/left)	09h58m17s.419

Dec (center)	+69°03′18″.85
Dec (top/left)	+69°18′37″.21
Dec (top/right)	+69°19′58″.00
Dec (bottom/right)	+68°47′50″.49
Dec (bottom/left)	+68°46′28″.81

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Messier 81

Revision title: Re-edit

Messier 81

Revision title: Re-edit

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Messier 81

Revision title: Re-edit

Messier 81

Revision title: Re-edit

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Acquisition details

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Sky plot

Histogram

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