M91 (Gary Imm) - AstroBin

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: M 91 · NGC 4548

M91

This Messier Object, also known as NGC 4548, is a barred grand design spiral galaxy located 55 million light years away in the constellation of Coma Berenices at a declination of +14 degrees. It spans 6 arc-minutes in our apparent view. This corresponds to a diameter of 90,000 light years. Our view of this galaxy is about midway between edge-on and face-on.

M91 is a magnitude 11 galaxy, which makes this the dimmest object in the Messier catalog. It is the 142nd brightest galaxy in the sky.

Although not as flashy as some other Messier galaxies, this object has a nice symmetric arm structure with blue star formation areas. The arms don’t quite start at the end of each bar. The dust lane structure through the bar is faint but extensive.

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ZWO ASI294MM Pro Images
CMOS Imagers
Cloudy Nights
Texas Astronomy
Images from the EdgeHD Series
Schmidt-Cassegrain Telescope (SCT) Imagers

Anemic Galaxies
Ansae Galaxy Bar
Barred Galaxies
Grand Design Galaxies
Messier Catalog (Complete)

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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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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
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Status	Advanced success
Started	...
Astrometry.net job	5738130
PixInsight job	MQOCD116OBYBZOZWGE2YQ222GU0044KB
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h35m26s.473
RA (top/left)	12h36m09s.430
RA (top/right)	12h34m42s.572
RA (bottom/right)	12h34m43s.564
RA (bottom/left)	12h36m10s.350

Dec (center)	+14°29′47″.80
Dec (top/left)	+14°37′01″.27
Dec (top/right)	+14°36′40″.65
Dec (bottom/right)	+14°22′33″.75
Dec (bottom/left)	+14°22′54″.70

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M91

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