IC 443 (Sh2-248) – The Jellyfish Nebula
January 29, 2022
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The Jellyfish Nebula is an unusual supernova remnant roughly 5,000 light-years away from Earth in the Gemini constellation.
Scientists believe the formation is the remnant of a supernova explosion that occurred anywhere from 3,000 to 30,000 years ago. The main leftover from that explosion appears to the be pulsar (a pulsating neutron star) creatively called CXOU J061705.3+222127 (labeled as J0617 in the overlay for the image above).
The object has an atypical shape for supernova remnants, which one study attributes to interaction of the expanding gasses from the explosion and the surrounding interstellar medium, which was already rich with material.
Celestron 1100 EdgeHD
Telescope
Finder Chart
Click to expand
Total integration: 20h 24m
Integration per filter:
- Lum/Clear: 15h 6m (302 × 180")
- R: 30m (10 × 180")
- G: 30m (10 × 180")
- B: 30m (10 × 180")
- Hα: 6h 6m (122 × 180")
- S2: 6h 27m (129 × 180")
- O3: 6h 21m (127 × 180")
Coordinates: 6h 16m 49s · +22° 32′ 35″
Image Capture
Location:
Back yard in North Dallas
Camera:
ZWO ASI6200MM-Pro
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