| Date & Time: | Jan 10 2016, from 23:39 to 24:30 JST(+0900) |
| Composed 6 shots with 10 minutes exposed |
| Optical: | Meade 25cm(10") Schmidt-Cassegrain with a conversion lens (f=1600mm, F6.3) |
| with BaaderPlanetarium UV/IR cut filter |
| Auto-guided with Meade LX200 Eqatorial & Pictor 201XT |
| Digital Camera: | Canon EOS 600D (Remodeled) |
| Location: | Ooizumi, Hokuto city, Yamanashi pref. |
| M108 (NGC3556) / Galaxy, type SB(s)cd III-IV |
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| R.A. | 11h 11m 31.8s (2000.0) |
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| Dec. | +55° 40' 15" (2000.0) |
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| Apparent Size | 8.7×2.3' |
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| Radial Velocity | 865km/s |
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| Magnitude | 10.7 |
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| Distance | 23 million light yrs. |
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| Group of Galaxies | Ursa Major N Group |
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| Other IDs | UGC6225, MCG9-18-98,
PGC34030 |
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M108 is a faint irregular galaxy about 2 degrees southeast of beta UMa (Merak),
it shows us its edge being on, and you can see a long ellipse via telescopes.
It lookes like a shrinked M82, a irregular and bright galaxy in Ursa Major.
The galaxy M108 has a length of about 8 arc minutes, but faint with a magnitude of 10.7,
it's hard to enjoy the shape unless you have a high magnification and extremely good conditioned night.
You can find out a famous planetary nebula of M97, Owl Nebula, about 50 arc minutes southeast from M108.
The distance is estimated about 23 million light years.
Jump to Wide field of M97 & M108
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