Deep Sky Object in Autumn
Abell 347 & NGC891 (Galaxy Cluster in Andromeda)

Click on image to enlarge

Date & Time: Nov 14 2020, from 19:59 to 20:24 JST(+0900)
Composed 10 shots with 2.5 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-D1 Light-pollution suppression filter
Auto-guided with TAKAHASHI JP Equatorial
CMOS Camera: ZWO ASI183MC
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...32bit FITS, converted to 16bit TIFF(5496×3672)
Device Size...13.2×8.8mm, Gain...300


Abell 347 / Galaxy Cluster, type 0 1 II-III
R.A.02h 25m 48.0s (2000.0)
Dec.+41°52' 00" (2000.0)
Apparent Size56'
# of Galaxies32
Red Shift0.0172
Magnitude13.3
Distance240 million light yrs.
Galactic superclusterPerseus-Pisces supercluster
NGC891 / Galaxy, type SA(s)b? sp III
R.A.02h 22m 36.0s (2000.0)
Dec.+42° 21' 00" (2000.0)
Apparent Size13.5×2.8'
Radial Velocity+713km/s
Magnitude10.0
Distance32 million light yrs.
Group of GalaxiesNGC1023 Group
Other IDsUGC1831, MCG7-5-46,
CGCG538-52, PGC09031
At only 45 minutes southeast of a well-proportioned edge-on galaxy of NGC891 seen in upper right-hand side, an indistinct galaxy cluster of Abell 347 is floating in the eastern region in Andromeda. Abell 347 includes about 30 member galaxies, one of principal cluster forming the "Perseus-Pisces super galaxy cluster". The supercluster includes the most striking "Perseus I cluster (Abell 426)" positioned at about 10 degrees east from this field. They have only dimmed galaxies but we can observe them around the zenith in autumn and winter skies, it can be said that they're easy-to-capture galaxy clusters at the northern hemisphere. The brightest galaxy in Abell 347 is NGC910 with a brightness of about 12th magnitude and a size of about 1.4 arc minutes. It has been estimated that the galaxy cluster is about 240 million light years away.
Numbers with 3 digits represent NGC #



Abell 262
Abell 397

Copyright(c) 2020 by Naoyuki Kurita, All rights reserved.
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