UGC 10043 & Hickson 77 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Serpens (Ser) · Contains: PGC 1656651 · PGC 1659534 · PGC 214424 · PGC 56094 · PGC 56100 · PGC 56101 · PGC 56121 · PGC 56122 · PGC 56123 · PGC 56125

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UGC 10043 & Hickson 77

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UGC 10043 & Hickson 77

This image captures several objects in the constellation of Serpens at a declination of +22 degrees.

The highlight of the image is UGC 10043, shown in the mouseover as PGC 56094. This is an edge-on spiral galaxy located 170 million light years away. This galaxy spans 2.5 arc-minutes in our apparent view, which corresponds to an actual diameter of 120,000 light years.

I love the structure of this galaxy. A dark, fairly detailed dust lane lie exactly along the mid-line. The bright bulge is almost spherical. At each end of the disk, slight warping is seen.

The galaxy group in the lower left corner is Hickson 77. I like the color contrast between the top 2 blue irregular galaxies (PGC 56121 & 56125) and the bottom two yellow spiral galaxies (PGC 56122 & 56123). These two pairs are at vastly different distances – the top 2 at 100 million light years, the bottom two at 0.5 billion light years.

Hiding in the center is the dim but distinct galaxy PGC 56100. This looks like it could be two very distant interacting spiral galaxies, but in reality the object is only 100 million light years away, so it is likely just an interesting irregular galaxy.

Many other tiny galaxies are visible in the background.

Texas Astronomy
Hickson Galaxy Clusters
Unique or Unusal Deep Sky Targets
Cloudy Nights
Schmidt-Cassegrain Telescope (SCT) Imagers

Edge-on Galaxies
Edge-on Galaxy Dust Band
Hickson Catalog (Complete)
Superthin Galaxies

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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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Status	Advanced success
Started	...
Astrometry.net job	3624475
PixInsight job	KB4YYB0L082HYAIK8OEYQVMZRLQ6VGK7
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	15h48m50s.707
RA (top/left)	15h49m27s.632
RA (top/right)	15h48m12s.474
RA (bottom/right)	15h48m13s.852
RA (bottom/left)	15h49m28s.878

Dec (center)	+21°52′10″.56
Dec (top/left)	+21°59′58″.82
Dec (top/right)	+21°59′37″.74
Dec (bottom/right)	+21°44′21″.92
Dec (bottom/left)	+21°44′42″.81

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UGC 10043 & Hickson 77

UGC 10043 & Hickson 77

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UGC 10043 & Hickson 77

UGC 10043 & Hickson 77

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