Deep Sky Object in Winter
M93 (Open Cluster in Puppis)

Date & Time: Jan 12 2013, from 24:45 to 25:09 JST(+0900)
Composed 4shots with 8 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with Astronomik CLS-CCD filter
Auto-guided with TAKAHASHI JP Equatorial &SBIG STV
Digital Camera: Canon EOS 550D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

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

M93 (NGC2447) / Open Cluster, type g, I 3 r
R.A.07h 44m 35.9s (2000.0)
Dec.-23° 52' 00" (2000.0)
Apparent Size25'
Real Size26 light yrs.
# of Stars80
Distance3580 light yrs.
At east of Canis Major, M93 (NGC2447) is an open cluster 2 degrees NW of zeta Puppis. The cluster looks like a dimmed nebula with binoculars, and comes to triangle-shaped stars being gathered through telescopes with medium-ranged magnification. Perhaps you'll have impression like a comet with a short tail.
The cluster is positioned at galactic latitude of zero, to say, just in center of the Milky Way in winter, there are plenty of faint stars around the cluster. M93 contains about 60 stars, and about 3600 light years away.


NGC1647 & NGC1746

Copyright(c) 2013 by Naoyuki Kurita, All rights reserved.
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