M81 (lowenthalm) - AstroBin

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's Galaxy · ES UMa · M 81 · NGC 3031 · PGC 2726822 · PGC 28505 · PGC 28529 · PGC 28757 · TYC4383-1127-1 · TYC4383-150-1 · TYC4383-2044-1 · TYC4383-565-1 · TYC4383-727-1 · TYC4383-738-1 · TYC4383-848-1 · TYC4383-848-2 · TYC4383-860-1

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M81

Acquisition type: Lucky imaging

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M81

Acquisition type: Lucky imaging

I decided to capture an image of M81 with my new SCT. Despite some periodic transparency issues and the object not being in the darkest part of the sky, the result was decent.

The galaxy has so many nebula and star clusters to scrutinize along with dozens of globular clusters brighter than 21s magnitude to hunt down. I have attached an image (Rev B) of the core marking a few of these objects. There are many more in the outskirts, but I there were so many that it was hard to label them all the way I was doing it.

Each 6 minute sub was a live stack of 72 x 5 second exposures.

Final
Original
B

B

Description: A selection of globular clusters brighter than 21st magnitude (the limit of the image) in the core labeled with identifiers and magnitudes.

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Galaxies - big!

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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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Status	Advanced success
Started	...
Astrometry.net job	5825830
PixInsight job	6Z5563LKVMX3T1721THFA9HEM0ES13UO
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h55m31s.600
RA (top/left)	09h58m36s.438
RA (top/right)	09h52m24s.356
RA (bottom/right)	09h52m28s.786
RA (bottom/left)	09h58m34s.724

Dec (center)	+69°03′40″.85
Dec (top/left)	+69°14′54″.65
Dec (top/right)	+69°14′43″.59
Dec (bottom/right)	+68°52′14″.79
Dec (bottom/left)	+68°52′25″.17

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M81

M81

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B

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Image Index:

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M81

M81

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Description

Comments

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B

Sky plot

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In these collections

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