NGC 70 Group (NGC 67, NGC 68, NGC 69, NGC 70, NGC 71, NGC 72)/Arp 113 (Sergey Trudolyubov)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: NGC 67 · NGC 68 · NGC 69 · NGC 70 · NGC 71 · NGC 72

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NGC 70 Group (NGC 67, NGC 68, NGC 69, NGC 70, NGC 71, NGC 72)/Arp 113

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NGC 70 Group (NGC 67, NGC 68, NGC 69, NGC 70, NGC 71, NGC 72)/Arp 113

The NGC 70 Group, a spectacular collection of galaxies of various morphological types located in the constellation of Andromeda. The group includes NGC 67 through NGC 72 and was designated as Arp 113 in the Atlas of Peculiar Galaxies by Halton Arp (1966). Based on the distance estimates, NGC 70 and NGC 72 spirals are probably close neighbors located ~330 million light years away, while the lenticular galaxies NGC 68 and NGC 71 are ~260-300 million light years distant.

This image is a combination of LRGB data collected with my mobile setup, the 250mm Lacerta PhotoNewton and ZWO ASI294MM Pro camera over September-October 2023. The luminance data includes exposures taken at 1000 mm and 1500 mm focal lengths (f/4 and f/6) to increase resolution. RGB color data was taken at f/4.

Exposure Details:

L: 30x300s (Gain 0, bin 1x1) taken at f/6
L: 52x300s (Gain 0, bin 1x1) taken at f/4
R: 51x180s (Gain 108, bin 1x1)
G: 36x180s (Gain 108, bin 1x1)
B: 41x180s (Gain 108, bin 1x1)

Total exposure: 13.2 hours

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Description: A close-up view

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Description: Inverted B&W image

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Description: A wider view

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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	8889624
PixInsight job	MNPHU2SMBBNU9HWUKJCBJDUIB5PXKLB3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h18m23s.502
RA (top/left)	00h18m02s.150
RA (top/right)	00h18m00s.831
RA (bottom/right)	00h18m44s.820
RA (bottom/left)	00h18m46s.209

Dec (center)	+30°04′17″.30
Dec (top/left)	+30°10′44″.93
Dec (top/right)	+29°58′02″.49
Dec (bottom/right)	+29°57′49″.61
Dec (bottom/left)	+30°10′31″.72

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NGC 70 Group (NGC 67, NGC 68, NGC 69, NGC 70, NGC 71, NGC 72)/Arp 113

NGC 70 Group (NGC 67, NGC 68, NGC 69, NGC 70, NGC 71, NGC 72)/Arp 113

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Image Index:

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NGC 70 Group (NGC 67, NGC 68, NGC 69, NGC 70, NGC 71, NGC 72)/Arp 113

NGC 70 Group (NGC 67, NGC 68, NGC 69, NGC 70, NGC 71, NGC 72)/Arp 113

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