Arp 284 - 2021 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Pisces (Psc) · Contains: 16 Psc · NGC 7714 · NGC 7715 · PGC 1211776 · PGC 1212850 · PGC 1213273 · PGC 1215231 · PGC 1216093 · PGC 1216545 · PGC 1217190 · PGC 1218363 · PGC 1219188 · PGC 1219264 · PGC 1219963 · PGC 1220551 · PGC 1221152 · PGC 1221319 · PGC 1223208 · The star 16Psc

Arp 284 - 2021

This object is a pair of galaxies located 115 million light years away in the constellation of Pisces at a declination of +2 degrees.

I took this image with my ASI6200 because of the intensely bright star in close proximity, which would have destroyed the image from my ASI1600. This star is the 5.6 magnitude 16 Piscium, about 100 light years away.

NGC 7715 is seen edge on at the left and distorted NGC 7715 is on the right. Each of these galaxies is about 3 arc-minutes wide in our apparent view, which corresponds to a diameter for each of 100,000 light years. I find the twisting structure of NGC 7714 to be especially fascinating. NGC 7714’s yellow core seems to be crying out for help. Blue star formation areas are seen both above and below the core. By comparison, NGC 7715’s distortion seem tame, although I find its core really odd in that it is not yellow, but contains 3 blue star clusters. The galaxies are likely in the process of merging into a single galaxy, as indicated by the connected tidal star streams.

Dr. Arp classified this object in the category of Double Galaxies – Infall and Attraction.

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Description: Comparison - Imm vs. Arp

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Arp's Peculiar Galaxies
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Status	Advanced success
Started	...
Astrometry.net job	4129249
PixInsight job	W195EQB4ANEEFA07RQ2UXBLTIAJNKVCE
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	23h36m14s.420
RA (top/left)	23h37m57s.126
RA (top/right)	23h34m54s.113
RA (bottom/right)	23h34m30s.996
RA (bottom/left)	23h37m33s.900

Dec (center)	+02°09′19″.42
Dec (top/left)	+02°19′49″.24
Dec (top/right)	+02°28′40″.78
Dec (bottom/right)	+01°58′49″.60
Dec (bottom/left)	+01°49′58″.47

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Arp 284 - 2021

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