Deep Sky Object in Winter
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Sh2-223, Sh2-224 (Supernova Remnants in Auriga)
Click on image to enlarge
| Date & Time: | Oct 22 2022, from 27:07 to 28:23 JST(+0900) |
| Mosaic of 2 flames of 10min.×4shots |
| 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.: -15°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 |
| Sh2-223 / Supernova Remnant, type 4 E |
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| R.A. | 05h 16m 38.0s (2000.0) |
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| Dec. | +42° 04' 00" (2000.0) |
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| Apparent Size | 60.0×7.0' |
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| Real Size | 530 light yrs. |
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| Magnitude | - |
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| Distance | 26,000 light yrs. |
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| Other IDs | LBN 768 |
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| Sh2-224 / Supernova Remnant, type 5 E |
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| R.A. | 05h 26m 52.0s (2000.0) |
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| Dec. | +42° 58' 00" (2000.0) |
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| Apparent Size | 30.5×17.5' |
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| Real Size | 235 light yrs. |
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| Magnitude | - |
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| Distance | 14,700 light yrs. |
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| Other IDs | LBN 769 |
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This image shows you three dimmed supernova remnants positioned in the Auriga's pentagon.
A vast curve-shaped one in lower right hand side is Sh2-223, a bit smaller one in upper left hand side has an ID of Sh2-224.
Sh2-223 has been positioned about 3 degrees southeast of Capella, its length extends to about a degree. Sh2-224, lying at 2 degrees northeast of Sh2-223,
has an elongated shape with a long axis of about 30 arc minutes.
You can display an emphasized red channel of color image by clicking on a button in upper right hand of this page. Perhaps you can trace figures of two remnants clearly in the image.
Sh2-224 has been made from two dense curved loops in northwest and southeast.
There is an extraordinary faint line-shaped nebula in west,
it's considered that the thin line corresponds to a bow shock of supernova explosion.
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