The Jellyfish Nebula (IC 443,
Sharpless 248 (
Sh2-248)) is a galactic
supernova remnant (SNR) in the constellation
Gemini located approximately 5,000 light-years from Earth. IC 443 may be the remains of a
supernova that occurred 30,000 - 35,000 years ago. The same supernova event likely created the
neutron starCXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.
Data acquired by
@Terry Hancock. System 1, Grand Mesa Observatory (GMO), CO, USA. Available via subscription with GMO.
Data processing: Terry Hancock & Jon Gascoyne (
https://downunderobservatory.com/tutorials)
Acquisition (03/12/21 - 05/12/21):
64 x 300 sec SII (bin x2)
64 x 300 sec HA (bin x2)
64 x 300 sec OIII (bin x2)
Total integration: 16 hrs 0 min
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