Deep Sky Object in Autumn
NGC1023 & IC239 (Galaxies in Perseus & Andromeda)


Date & Time: Jan 4 2016, from 21:26 to 23:23 JST(+0900)
Mosaic of 2 flames of 10min.× 6 shots
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium UV/IR cut filter
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Canon EOS 600D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

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


NGC1023 / Galaxy, type SB(rs)0-
R.A.02h 40m 24.1s (2000.0)
Dec.+39° 03' 46" (2000.0)
Apparent Size8.7×3.0'
Radial Velocity+713km/s
Magnitude10.4
Distance36 million light yrs.
Group of GalaxiesNGC1023 Group
Other IDsUGC2154, MCG6-6-73
CGCG523-83, PGC10123
IC239 / Galaxy, type SAB(rs)cd
R.A.02h 36m 27.9s (2000.0)
Dec.+38°58' 12" (2000.0)
Apparent Size4.5×4.1'
Radial Velocity+903km/s
Magnitude11.8
Distance36 million light yrs.
Group of GalaxiesNGC1023 Group
Other IDsUGC2080, MCG +6-6-65
CGCG523-71, PGC09899
This image shows you two medium-scaled galaxies lying between Perseus and Andromeda.
NGC1023 in left hand side is a spiral galaxy with a long axis of about 10 arc minutes. You can find out the galaxy just 3.5 degrees south of an open cluster of M34. The galaxy has an apparent shape of ellipse elongated in east west direction, and has a bright nucleus and surrounding dimmed light. A dimmed companion galaxy of NGC1023A can be found just east of NGC1023
Another galaxy in 50 arc minutes west of NGC1023 has an ID of IC239. The galaxy is a face-on typed spiral with a diameter of about 5 arc minutes, the image shows an indistinct spiral structures.



NGC1003
NGC1024

Copyright(c) 2016 by Naoyuki Kurita, All rights reserved.
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