Deep Sky Object in Winter
Sh2-280, Sh2-282 & Sh2-284 (Diffused Nebulae in Monoceros)
Click on image to enlarge
| Date & Time: | Dec 12 2020, from 25:26 to 26:59 JST(+0900) |
| Mosaic of 2 flames of 6min.×8shots |
| Optical: | TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3) |
| with IDAS LPS-V4 Light-pollution suppression filter |
| Auto-guided with TAKAHASHI JP Equatorial & SBIG STV |
| Digital Camera: | Canon EOS 6D (Remodeled) |
| Location: | Ooizumi, Hokuto city, Yamanashi pref. |
| Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5472×3648) |
| Sensitivity...ISO3200 |
Objects around Sh2-280 to 284
Italic indicates IDs of open clusters
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We can find out various diffused nebulae like broken clouds in the Milky Way in winter.
Almost all of them had been discovered after the astrophotography was invented and developed.
Three reddish nebulae this picture shows you are positioned in Monoceros, paralleling from northwest to southeast at just south of the Rosette Nebula.
A diffused nebula of Sh2-280 at upper right-hand side has a span of 40 arc minutes at 2.5 degrees south of the Rosette nebula.
Sh2-282 in center is the dense one in three, floating around the center of Wintry Great Triangle.
The nebula has a size of 30×10 arc minutes in N-S and E-W directions respectively.
Lastly, a dimmed nebula in lower left-hand side is Sh2-284.
The nebula has a size of about 20 arc minutes, and is surrounded by dimmed reddish gaseous matters.
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| Sh2-280 / Diffused Nebula, type 4 E |
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| R.A. | 06h 38m 00.0s (2000.0) |
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| Dec. | -02° 00' 00" (2000.0) |
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| Apparent Size | 40' |
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| Real Size | 65 light yrs. |
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| Magnitude | - |
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| Distance | 5540 light yrs. |
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| Other IDs | LBN970 |
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| Sh2-282 / Diffused Nebula, type 3 E |
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| R.A. | 06h 38m 00s (2000.0) |
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| Dec. | +01° 30' 00" (2000.0) |
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| Apparent Size | 30×10' |
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| Real Size | 50 light yrs. |
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| Magnitude | - |
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| Distance | 4890 light yrs. |
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| Other IDs | LBN978 |
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| Sh2-284 / Diffused Nebula, type 6 E |
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| R.A. | 06h 45m 41.8s (2000.0) |
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| Dec. | +00° 12' 06" (2000.0) |
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| Apparent Size | about 20' |
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| Real Size | 400 light yrs. |
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| Magnitude | - |
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| Distance | 16900 light yrs. |
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