Deep Sky Object in Summer
Around Sh2-66, Sh2-67 & Sh2-69 (Diffused nebulae in Aquila)
Click on image to enlarge
| Date & Time: | Aug 10 2024, from 22:10 to 24:15 JST(+0900) |
| Mosaic of 2 flames of 8min.×8shots |
| Optical: | TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3) |
| with LPS-D1 Light-pollution suppression filter |
| Auto-guided with TAKAHASHI JP Equatorial & SBIG STV |
| CMOS Camera: | ZWO ASI2600MC Pro (Cooled temp.: -5°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 Sh2-66, 67 & 69
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This image captures the southwestern corner of the constellation Aquila, focusing on three small emission nebulae scattered near the border between Serpens (Cauda) and Scutum.
This region is located about 3 degrees north of β Scuti in the southern neighbor constellation.
The red emission nebula visible in the lower right of the image is Sh2-66, with an apparent diameter of about 8 arc minutes.
One degree ESE, in the lower left of the image, is the circular nebula Sh2-67.
Due to significant obscuration by interstellar gas, it is the faintest and most unclear in the three nebulae.
Finally, at the top of the image is Sh2-69, which has a size of around 11 arc minutes.
Although these three nebulae appear to be grouped within a region of 3 degrees, Sh2-66 and Sh2-69 are actually located 12,400 light-years away,
while Sh2-67 is much closer, at a distance of 1,300 light-years.
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| Sh2-66 / Diffused Nebula, type 4 E |
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| R.A. | 18h 45m 34.3s (2000.0) |
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| Dec. | -02°00' 17" (2000.0) |
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| Apparent Size | 8.0' |
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| Real Size | 29 light yrs. |
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| Magnitude | - |
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| Distance | 12,400 light yrs. |
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| Other IDs | LBN 92, RCW 176 |
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| Sh2-67 / Diffused Nebula, type 5 E |
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| R.A. | 18h 49m 24.7s (2000.0) |
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| Dec. | -02°21' 13" (2000.0) |
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| Apparent Size | 10.0' |
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| Real Size | 3.8 light yrs. |
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| Magnitude | - |
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| Distance | 1300 light yrs. |
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| Other IDs | LBN 94 |
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| Sh2-69 / Diffused Nebula, type 4 E |
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| R.A. | 18h 44m 23.6s (2000.0) |
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| Dec. | -00°15' 48" (2000.0) |
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| Apparent Size | 11.0' |
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| Real Size | 40 light yrs. |
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| Magnitude | - |
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| Distance | 12,400 light yrs. |
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| Other IDs | LBN 99, RCW 177 |
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