Deep Sky Object in Winter
Around Sh2-270 to Sh2-271 (Diffused Nebulae in Orion)
Click on image to enlarge
| Date & Time: | Jan 20 2023, from 25:00 to 26:36 JST(+0900), 8min.×8shots |
| Feb 24 2023, from 22:53 to 23:49 JST(+0900), 8min.×8shots |
| Mosaic of 2 flames |
| 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 |
| CMOS Camera: | ZWO ASI2600MC Pro (Cooled temp.: -25°C) |
| Location: | Ooizumi, Hokuto city, Yamanashi pref. |
| Camera Settings: | Recording format...16bit FITS, converted to 16bit TIFF(6248×4176) |
| Device Size...23.5×15.7mm, Gain...100 |
Objects around Sh2-270, 271
Italic indicates ID of open clusters
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This image captures a 2.5×3.0° area around ξ Ori at the center of Orion's raised club. Small Hα nebulae are scattered around this area.
Sh2-268, which is located just south of ξ Ori, is the largest, and has an extent of 30'×12'. To the east of it you can see two smaller ones Sh2-267 and Sh2-269.
Sh2-270 is a reflection nebula with a size of only 1 arc minute, but there is a large, faint Hα nebula without ID numbers around it.
Sh2-271 is a circular reddish diffused nebula with 2 arc minutes in diameter located on the left side of the image.
Actually, its southwestern faint part has been assigned another ID of Sh2-272.
A small open cluster NGC2194 is located 30 minutes north of Sh2-271. About 80 faint stars are included in 10 arc minutes across.
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| Sh2-267 / Diffused Nebula, type 5 E |
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| R.A. | 06h 15m 50.6s (2000.0) |
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| Dec. | +14°16' 12" (2000.0) |
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| Apparent Size | 4.0' |
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| Real Size | 13 light yrs. |
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| Magnitude | - |
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| Distance | 11,400 light yrs. |
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| Other IDs | LBN 875 |
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| Sh2-268 / Diffused Nebula, type 5 E |
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| R.A. | 06h 10m 52.0s (2000.0) |
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| Dec. | +13°44' 13" (2000.0) |
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| Apparent Size | 30×12' |
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| Real Size | 36×14 light yrs. |
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| Magnitude | - |
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| Distance | 4200 light yrs. |
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| Other IDs | LBN 874 |
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| Sh2-269 / Diffused Nebula, type 2 E |
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| R.A. | 06h 14m 39.6s (2000.0) |
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| Dec. | +13°49' 53" (2000.0) |
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| Apparent Size | 3.0×2.0' |
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| Real Size | 15×10 light yrs. |
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| Magnitude | - |
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| Distance | 17,200 light yrs. |
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| Other IDs | LBN 876 |
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| Sh2-270 / Diffused Nebula, type 5 R |
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| R.A. | 06h 10m 13.0s (2000.0) |
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| Dec. | +12°48' 44" (2000.0) |
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| Apparent Size | 1.0' |
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| Real Size | 6 light yrs. |
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| Magnitude | - |
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| Distance | 22,000 light yrs. |
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| Other IDs | LBN 877 |
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| Sh2-271 / Diffused Nebula, type E |
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| R.A. | 06h 14m 53.3s (2000.0) |
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| Dec. | +12°21' 23" (2000.0) |
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| Apparent Size | 2.0' |
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| Real Size | 6 light yrs. |
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| Magnitude | - |
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| Distance | 10,700 light yrs. |
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| Other IDs | PK 197-2.1 |
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| NGC2194 / Open Cluster, type II 2 r |
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| R.A. | 06h 13m 46.0s (2000.0) |
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| Dec. | +12°48' 24" (2000.0) |
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| Apparent Size | 10.0' |
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| Real Size | 35 light yrs. |
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| # of Stars | 80 |
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| Magnitude | 8.5 |
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| Distance | 12,300 light yrs. |
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| Other ID | Cr 87, Mel 43 |
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