Deep Sky Object in Autumn
Around Sh2-163 (Diffused Nebulae in Cassiopeia)
Click on image to enlarge
| Date & Time: | Dec 23 2016, from 20:09 to 21:05 JST(+0900) |
| Composed 10 shots with 6 minutes exposed |
| Optical: | TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3) |
| with IDAS LPS-D1 Light-pollution suppression filter |
| Auto-guided with TAKAHASHI JP Equatorial & SBIG STV |
| Digital Camera: | Nikon D810A |
Location: | Ooizumi, Hokuto city, Yamanashi pref. |
| Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(7360×4912) |
| Device Size...FX formet (36×24mm) |
| Sensitivity...ISO3200, White Balance...Daylight |
This image has captured minor H-alpha nebulae floating in the Milky Way of western Cassiopeia.
The field is equivalent between beta Cas and an major open cluster of M52. Sh2-163 in right hand and SH2-166 in center has sized of about 10 arc minutes.
And the brightest one of Sh2-168 in left edge has a span of about 5 arc minutes.
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| Sh2-163 / Diffused Nebula, type 4 E |
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| R.A. | 23h 33m 19.4s (2000.0) |
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| Dec. | +60°47' 08" (2000.0) |
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| Apparent Size | 10.0' |
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| Real Size | 36 light yrs. |
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| Magnitude | - |
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| Distance | 12500 light yrs. |
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| Other IDs | LBN 557 |
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|
| Sh2-166 / Diffused Nebula, type 6 E |
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| R.A. | 23h 42m 10.3s (2000.0) |
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| Dec. | +60°58' 16" (2000.0) |
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| Apparent Size | 10.0' |
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| Real Size | 22 light yrs. |
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| Magnitude | - |
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| Distance | 7800 light yrs. |
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| Other IDs | LBN 566 |
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|
| Sh2-168 / Diffused Nebula, type 3 E |
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| R.A. | 23h 53m 01.8s (2000.0) |
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| Dec. | +60°29' 12" (2000.0) |
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| Apparent Size | 5.0' |
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| Real Size | 17 light yrs. |
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| Magnitude | - |
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| Distance | 11600 light yrs. |
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| Other IDs | LBN 568 |
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