Jellyfish Nebula IC 443
IC 443 (also known as the Jellyfish Nebula and Sharpless 248 (Sh2-248)) is a Galactic supernova remnant (SNR) in the constellation Gemini. On the plan of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth.
IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. The same supernova event likely created the neutron star CXOU 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.
Raw images:
Ha: 4 x 10min (Tot: 40 min) Bin:2x2
SII: 4 x 10min (Tot: 40 min) Bin:3x3
OIII: 2 x 10min (Tot: 20 min) Bin:3x3
Seeing: 2-3"
Equipment used:
ASA N12 Astrograph F/3.6
3" Wynne Corrector 0.95x
Atik 490 EX camera @-20C
No guiding
Filter:
Astrodon Ha 5nm, SII 5nm and OIII 3nm
Location/Date:
Valla Observatory (FROSON, Sweden)
Jan 10, 2016
Image processing:
Images calibrated and processed in AstroPix and Photoshop
Calibration by applying Flat-Field
Color image with the Photoshop using Goldie lock palette.
Image palette:
Red: Ha, Orange: SII and OIII: Blue
Image information:
Scale: 0.92 arcsec/pix
FOW: 52x42 arcmin
Narrowband Ha 5nm image
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