Stephan's Quintet (Vitali)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: NGC 7317 · NGC 7318 · NGC 7319 · NGC 7320 · PGC 141041 · PGC 69260 · PGC 69279 · Stephan's Quintet

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Stephan's Quintet

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Stephan's Quintet

Another deep sky object which I like very much. This image of the famous Stephan's Quintet consists of 1004 unguided exposures 180 seconds each. The data has been gathered in July, August and September of this year.

The extended halo around the group of galaxies is barely visible. It turned out that 50 hours were not enough to beat the light pollution.

As always the image acquisition has been fully automated by Voyager, which worked flawlessly from dusk till down during many nights.

SDSS image of Stephan's Quintet

Thanks for looking,

Vitali

31 December 2020:

There is a faint stars trail on the left from NGC7320. It is thought that it has been caused by a collision with NGC7320c (PGC 69279): "... the group has been visited twice by NGC 7320c. The first collision created the very faint tidal arm east of the interloper NGC 7320"

Original
C
E
Final
F

C

Description: "Oversaturated" version. Reprocessed from scratch.

Uploaded: ...

E

Description: Another attempt to reveal the faint halo around the galaxies. However this makes the stars look bad.

I've found some interesting information about the stars trail on the left from NGC7320. Please see the image description.

Uploaded: ...

F

Description: Without overstretch. AutoColor script for color calibration.

Uploaded: ...

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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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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	3885450
PixInsight job	Y7GONMZVUKGB1GBT4PAQB1X2FWX666B5
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h36m05s.312
RA (top/left)	22h37m09s.119
RA (top/right)	22h35m01s.273
RA (bottom/right)	22h35m01s.732
RA (bottom/left)	22h37m09s.680

Dec (center)	+33°58′12″.95
Dec (top/left)	+34°07′01″.100
Dec (top/right)	+34°06′58″.86
Dec (bottom/right)	+33°49′21″.38
Dec (bottom/left)	+33°49′24″.15

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Stephan's Quintet

Stephan's Quintet

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Stephan's Quintet

Stephan's Quintet

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