Updated
SH2-188Sep 8th, 2026
16 h 35 m
Reassembled with more careful handling of hydrogen at the periphery.
SH2-188
- Resolution:
- 6178x4062 px
- File size:
- 2464 KB
Photo description / processing
It's an interesting fact that the nebula was discovered in 1951 by our astronomers Grigory Shain and Vera Gaze at the Simeiz Observatory in Crimea. Stuart Sharpless discovered it independently, but only in 1959. Despite this, the nebula is known as
Sharpless 188 (Sh2-188).
Initially, it was assumed that Sh2-188 was a supernova remnant. However, it was later found to be an asymmetric planetary nebula, formed when a star of similar mass to the Sun shed its outer layers.
The object is quite faint; I imaged it over 7 nights. From my location, it's only accessible after midnight, so I had to spend more nights on it than I expected.
Further integration adds very slowly now, so I decided to stop.
Initially, it was assumed that Sh2-188 was a supernova remnant. However, it was later found to be an asymmetric planetary nebula, formed when a star of similar mass to the Sun shed its outer layers.
The object is quite faint; I imaged it over 7 nights. From my location, it's only accessible after midnight, so I had to spend more nights on it than I expected.
Further integration adds very slowly now, so I decided to stop.
Technical information
- Telescope/Lens
- Sharpstar SCA310/3.8
- Camera
- ZWO ASI2600MC PRO
- Mount
- ФА-40
- Guide Scope
- Svbony SV48P (90/5.5)
- Guide Camera
- ZWO ASI174MM Mini
- Location
- Moscow, Russia
- Date taken
Exposure
- 199 × 300″ · ISO/Gain: 100 · Optolong Dual-Band L-Ultimate
Total exposure: 16 h 35 m
Photo versions
Current photo
SH2-188Aug 12th, 2026
16 h 35 m
It's an interesting fact that the nebula was discovered in 1951 by our astronomers Grigory Shain and Vera Gaze at the Simeiz Observatory in Crimea. Stuart Sharpless discovered it independently, but only in 1959. Despite this, the nebula is known as Sharpless 188 (Sh2-188).Initially, it was assumed that Sh2-188 was a supernova remnant. However, it was later found to be an asymmetric planetary nebula, formed when a star of similar mass to the Sun shed its outer layers.The object is quite faint; I imaged it over 7 nights. From my location, it's only accessible after midnight, so I had to spend more nights on it than I expected.Further integration adds very slowly now, so I decided to stop.
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