Deep Sky Object in Autumn
Wide-field around vdB152 & LDN1235
Click on image to enlarge
| Date & Time: | Nov 15 2025, from 18:45 to 21:11 JST(+0900) |
| Composed 25 shots with 6 minutes exposed |
| Optical: | BORG 67FL with a conversion lens (f=210mm, F3.4) |
| with IDAS LPS-D1 light-pollution suppression filter |
| Auto-guided with TAKAHASHI EM-200 Equatorial |
| CMOS Camera: | ZWO ASI2600MC Pro (Cooled temp.: -20°C) |
| Location: | Tamura city, Fukushima pref. |
| Camera Settings: | Recording format...16bit FITS, converted to 16bit TIFF(6248×4176) |
| Device Size...23.5×15.7mm, Gain...100 |
Objects around vdB152 to LDN1235
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This is a wide-field image capturing a group of faint nebulae with distinctive shapes, located in the northern part of the Cepheus pentagon shown on the previous page.
At the center of the frame lies the reflection nebula vdB 152, from which a narrow streak of dark nebula (the Wolf's Cave Nebula) extends northward.
Just north of 24 Cephei is the so-called "Shark Nebula" - a formation resembling a shark's profile, consisting of the dark nebula LDN 1235 and the emission nebula LBN 535.
About 1.5 degrees southeast of vdB 152 lies the small dark nebula LDN 1221, about 6 arcminutes across, from which a faint filament of molecular cloud extends northwestward like a comet.
Also visible in the image are the planetary nebula PK 111+11.1 and part of the extremely faint, arc-shaped emission nebula LBN 538.
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| vdB152 / Reflection Nebula, type 3 R |
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| R.A. | 22h 13m 26.2s (2000.0) |
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| Dec. | +70°15' 16" (2000.0) |
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| Apparent Size | 10.0×3.0' |
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| Real Size | 4.0×1.2 light yrs. |
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| Magnitude | - |
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| Distance | 1400 light yrs. |
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| Other IDs | LBN531, Ced 201 |
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| LDN 1217 / Dark Nebula |
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| R.A. | 22h 13m 06.0s (2000.0) |
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| Dec. | +70°45' 00" (2000.0) |
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| Apparent Size | 28.2×52.2' |
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| Real Size | N/A |
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| Magnitude | - |
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| Distance | N/A |
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| LDN 1221 / Dark Nebula |
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| R.A. | 22h 28m 02.9s (2000.0) |
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| Dec. | +69°01' 13" (2000.0) |
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| Apparent Size | 6.0×6.0' |
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| Real Size | N/A |
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| Magnitude | - |
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| Distance | N/A |
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Click on image to enlarge
Wide-field image around vdB152 & LDN1235 (Shark Nebula)
| Date & Time: | Jul 2 2022, from 22:44 to 24:01 JST(+0900) |
| Composed 16 shots with 5 minutes exposed |
| Optical: | AF zoom-Nikkor ED 80-200mm F2.8 (f=80mm, Aperture: F4.0) |
| with IDAS LPS-D1 Light-pollution suppression filter |
| Auto-guided with TAKAHASHI EM-200 Equatorial |
| CMOS Camera: | ZWO ASI2600MC Pro (Cooled temp.: -10°C) |
| Location: | Sendaihira, Tamura city, Fukushima pref. |
| Camera Settings: | Recording format...16bit FITS, converted to 16bit TIFF(6248×4176) |
| Device Size...23.5×15.7mm, Gain...100 |
This photograph covers a 17×11° field in the northern part of Cepheus, centered on vdB 152 (the Wolf's Cave Nebula) and LDN 1235 (the Shark Nebula).
The bright star at the lower right of the frame is beta Cephei.
Although much of the field appears to be veiled in haze, this region, which lies just north of the autumn Milky Way,
is occupied by the extremely large and faint molecular cloud known as the Cepheus Flare.
In addition to the Shark Nebula at the center, features such as LBN 558, located about 2.5° to the northeast, are areas where this molecular cloud happens to appear more concentrated.
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Wide-field objects around vdB152 & LDN1235 |
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