Maffei 1 - Sh2-191 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Sh2-191

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Maffei 1 - Sh2-191

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Maffei 1 - Sh2-191

This object is a rarely imaged elliptical galaxy located only 10 million light years away in the constellation of Cassiopeia at a declination of +60 degrees. The galaxy spans 3.5 arc-minutes in our apparent view, which corresponds to a diameter of just 10,000 light years.

The reddish glow is from the significant amount of intervening Milky Way dust that obscures the galaxy. If it wasn't for this dust, this galaxy would be one of the brightest ones in the northern hemisphere.

I like the interesting dust lane to the right of the core. This dust cloud is part of the Milky Way in front of the galaxy, and does not belong to the galaxy itself.

The diagonally shaped (from lower left to upper right) star cluster Czernik 11 appears directly in front of the galaxy. A reflection nebula (2MASS J02371126+5942330) above and left of the galaxy has a slight tint of green from the blue star shining through the red dust.

This galaxy is named after Italian astronomer Paolo Maffei, who discovered it and Maffei 2 in 1967. He was one of the pioneers of infrared astronomy research. He used infrared analysis to discover the 2 galaxies named after him.

It is interesting to me that Sharpless discovered and designated this object as a nebula (incorrectly) in 1953, long before it was discovered as a galaxy by Maffei.

Takahashi Refractors
Sharpless2 Objects
ZWO ASI183/QHY183
Unique or Unusal Deep Sky Targets
The refractors!
Cloudy Nights

Elliptical Galaxies
Sharpless Catalog (200/313)

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	3039086
PixInsight job	7E8DG2UA0HT1P4KXO7BNUSED5ME68URM
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	02h36m37s.320
RA (top/left)	02h39m03s.162
RA (top/right)	02h34m04s.851
RA (bottom/right)	02h34m13s.358
RA (bottom/left)	02h39m07s.926

Dec (center)	+59°39′26″.71
Dec (top/left)	+59°52′38″.97
Dec (top/right)	+59°51′24″.50
Dec (bottom/right)	+59°26′03″.68
Dec (bottom/left)	+59°27′18″.90

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Maffei 1 - Sh2-191

Maffei 1 - Sh2-191

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Maffei 1 - Sh2-191

Maffei 1 - Sh2-191

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