Deep Sky Object in Autumn
NGC474 & NGC470 (Arp 227, Galaxies in Pisces)

Click on image to enlarge

Date & Time: Nov 6 2010, from 23:48 to 24:19 JST(+0900)
Composed 6 shots with 6 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1790mm, F7.1)
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Nikon D700
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(2784×1848)
Device Size...DX Format (24×16mm)
CCD Sensitivity...ISO3200


NGC474 / Galaxy, type SA(s)0
R.A.01h 20m 06.8s (2000.0)
Dec.+03°25' 00" (2000.0)
Apparent Size7.0×6.2'
Radial Velocity+2315km/s
Magnitude12.4
DistanceN/A
Group of GalaxiesN/A
Other IDsUGC 864, CGCG 385-71
Arp 227, MCG +0-4-85, PGC 4801
NGC470 / Galaxy, type SA(rs)b
R.A.01h 19m 44.8s (2000.0)
Dec.+03°24' 36" (2000.0)
Apparent Size2.8×1.7'
Radial Velocity+2559km/s
Magnitude12.5
DistanceN/A
Group of GalaxiesN/A
Other IDsUGC 858, CGCG 385-70
MCG +0-4-84, IRAS 1171+308
PGC 4777
This image has captured a small interacting galaxy pair bathed in field of between Pisces and Cetus. An eastern galaxy is NGC474 and western one is NGC470, they're floating with an interval of about 8 arc minutes. NGC474 looks like an elliptical, only bright central bulge is striking and very dimmed ring-structured outer region can be recognized, the outer ring has a diameter of about 8 arc minutes. Another one of NGC470 is a clear ring galaxy; it's considered that the anomalous figure was made by colliding influence with NGC474.



NGC428
NGC488

Copyright(c) 2011 by Naoyuki Kurita, All rights reserved.
To top page To Deepsky in Autumn index Pisces