Deep Sky Object in Winter
NGC1232 (Galaxy in Eridanus)

Date & Time: Dec 5 2015, from 22:44 to 23:36 JST(+0900)
Composed 6 shots with 10 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Canon EOS D600 (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)
CCD Sensitivity...ISO1600

NGC1232 / Galaxy, type SAB(rs)c I or I-II
R.A.03h 09m 45.3s (2000.0)
Dec.-20° 34' 52" (2000.0)
Apparent Size7.4×6.4'
Radial Velocity+1517km/s
Distance65 million light yrs.
Group of GalaxiesEridanus Cluster
Other IDsMCG-2-9-42, PGC12916
In central part of Eridanus, it's a face-on spiral about 2.5 degrees northwest of tau-4 Eri. The galaxy has an apparent size of 7 arc minutes, you can detect only dimmed light somehow, but this picture can show you well-developed arms coiled-up clearly. One of members of Eridanus cluster about 65 millions light years away.



Copyright(c) 2015 by Naoyuki Kurita, All rights reserved.
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