NGC 55 (Gary Imm)

Celestial hemisphere: Southern · Constellation: Sculptor (Scl) · Contains: IC 1537 · NGC 55 · PGC 1050 · PGC 107623 · PGC 107624 · PGC 107658 · PGC 107659 · PGC 124643 · PGC 124644 · PGC 124647 · PGC 124648 · PGC 124777 · PGC 124779 · PGC 124782 · PGC 171726 · PGC 199940 · PGC 598423 · PGC 598437 · PGC 598452 · PGC 598699 · PGC 598862 · PGC 599064 · PGC 599244 · PGC 599387 · PGC 599647 · PGC 599897 · PGC 600275 · PGC 600430 · PGC 600628 · PGC 601019 · And 5 more.

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NGC 55

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NGC 55

This object is an edge-on irregular galaxy located only 7 million light years away in the southern constellation of Sculptor at a declination of -39 degrees. This galaxy spans a whopping 30 arc-minutes in our apparent view, equal to that of our full moon in the sky. I believe that it is the largest non-Messier galaxy in the sky in apparent size. It has an actual diameter of 60,000 light years.

Through our nearly edge-on view, numerous blue star clusters are seen along with many dust clouds and some faint Ha regions. I like the asymmetric brightness of the galaxy, with the core centered on the right third of the disk.

ASI 6200 MM Pro
Cloudy Nights
Schmidt-Cassegrain Telescope (SCT) Imagers
Texas Astronomy
Images from the EdgeHD Series

Brightest Galaxy Catalog (Complete)
Caldwell Catalog (Complete*)
Edge-on Galaxies
Irregular Galaxies
Magellanic Galaxies

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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
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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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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	3818832
PixInsight job	U73WX75FBPZ9LMGU0SLKAVC69HKK7LK2
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h15m07s.592
RA (top/left)	00h16m49s.344
RA (top/right)	00h13m25s.222
RA (bottom/right)	00h13m25s.320
RA (bottom/left)	00h16m50s.568

Dec (center)	-39°12′22″.40
Dec (top/left)	-38°59′13″.45
Dec (top/right)	-38°59′23″.98
Dec (bottom/right)	-39°25′23″.96
Dec (bottom/left)	-39°25′13″.12

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NGC 55

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