| 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. |
| M93 (NGC2447) / Open Cluster, type g, I 3 r |
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| R.A. | 07h 44m 35.9s (2000.0) |
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| Dec. | -23° 52' 00" (2000.0) |
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| Apparent Size | 25' |
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| Real Size | 26 light yrs. |
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| # of Stars | 80 |
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| Magnitude | 6.0 |
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| Distance | 3580 light yrs. |
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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.
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