Jellyfish Nebula (IC 443)
The expanding shell of a star that exploded thousands of years ago.
This photograph is also available in the shop as a full-resolution digital file.
Buy in the shopAbout the object
The Jellyfish (IC 443) in Gemini is a supernova remnant about 5,000 light years away. The shock wave from the explosion is still ploughing into the surrounding interstellar gas, making it glow in fine filaments. Its age is estimated at thousands to tens of thousands of years.
How the image was made
- Captured
- 4 January 2026 (start, several nights)
- Total exposure
- 8 h 00 min (96 × 300 s)
- Camera
- ZWO ASI2600MC Pro
- Focal length
- 448 mm
- Mount
- ZWO AM5N
- Location
- Banská Bystrica, Slovakia (home observatory)
- Calibration & stacking
- Siril 1.4.0
- Processing
- Adobe Lightroom 9.0 (Windows)
Data from the original file’s metadata or from the author.