Draco Triplet (Mau_Bard)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: NGC 5976 · NGC 5981 · NGC 5982 · NGC 5985 · PGC 2587800 · PGC 2588841 · PGC 2589408 · PGC 2590275 · PGC 2591991 · PGC 2592514 · PGC 55561 · PGC 55604 · PGC 55758

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Draco Triplet

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Draco Triplet

I tried to use here 2x2 drizzling integration in order to better manage the details, and in general to achieve a higher quality debayerization. Although textbooks say that drizzling introduces significant noise in the process, my experience here is that the fine grained drizzled noise was much more pleasant and easier to manage than the "normal" one .

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NGC 5981 NGC 5982 and NGC 5985 constitute the Draco Galaxy trio Holm 719 or KTG 64, and also the so-called NGC 5982 Group together with NGC 5976 (visible on the right here), NGC 5987 and NGC 5989.

NGC 5985 is about 140 ± 35 Mly away, NGC 5982 123 ± 34 Mly and the small edge-on NGC 5981 about 86 ± 7 Mly away. The three galaxies reside at different distances so the triplet could be purely a line of sight effect, however, given the errors in astronomical distance measurement, they could still be related.

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Imagers of Italy

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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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Status	Advanced success
Started	...
Astrometry.net job	5761717
PixInsight job	3JD018IZWE4UM0UP2YTZQDA36IQF0RMC
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	15h38m39s.755
RA (top/left)	15h35m35s.847
RA (top/right)	15h41m36s.332
RA (bottom/right)	15h41m46s.918
RA (bottom/left)	15h35m39s.863

Dec (center)	+59°21′31″.69
Dec (top/left)	+59°03′01″.19
Dec (top/right)	+59°01′50″.84
Dec (bottom/right)	+59°39′46″.13
Dec (bottom/left)	+59°40′56″.24

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