| Sh2-296 / Diffused Nebula, type 4 E |
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| R.A. | 07h 06m 00.0s (2000.0) |
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| Dec. | -10°55' 00" (2000.0) |
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| Apparent Size | 150.0×60.0' |
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| Real Size | 165×66 light yrs. |
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| Magnitude | - |
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| Distance | 3800 light yrs. |
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| Other IDs | LBN 1033 |
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| IC2177(vdB93) / Diffused Nebula, type 1 E+R |
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| R.A. | 07h 04m 31.0s (2000.0) |
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| Dec. | -10°28' 00" (2000.0) |
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| Apparent Size | 19.0×17.0' |
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| Real Size | 21×19 light yrs. |
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| Magnitude | - |
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| Distance | 3750 light yrs. |
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| Other IDs | Sh2-292, LBN 1027 |
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This is a diffuse nebula located about 7 degrees northeast of Sirius, resembling a bird with outstretched wings,
which is why it is called the "Seagull Nebula" in English (also known as the "Eagle Nebula" in Japanese).
Like many diffuse nebulae, it is unfortunately not visible to the naked eye. Spanning over 2 degrees in length from north to south, its shape can be clearly captured even with a standard lens.
The Seagull Nebula is a massive cloud of hydrogen gas floating approximately 3,800 light-years away.
About 2 degrees east of the Seagull Nebula lies LBN1036, an extremely faint diffuse nebula.
Strictly speaking, IC2177 refers to the section corresponding to the head of the seagull and is also identified with IDs such as vdB93.
The faint region that makes up the wings of the seagull is cataloged as Sh2-296 in the Sharpless catalog.
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Nebulae & Star clusters around Seagull Nebula
Italic indicates ID of open clusters |
Click on image to enlarge
Close-up image of central Seagull Nebula
| Date & Time: | Dec 28 2024, from 25:52 to 27:55 JST(+0900) |
| Mosaic of 2 flames of 8min.×8shots |
| 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 central Seagull Nebula
Italic indicates ID of open clusters
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This is a close-up image capturing the main body of the Seagull Nebula.
The southern wing of the seagull overlaps with a dark nebula, and the bright emission nebula visible at the southern tip is designated as Sh2-297.
To the west of the wing, the circular Hα nebulae Sh2-293 and Sh2-295 are located.
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