Jellyfish Nebula IC 443

Posted by on Jul 22, 2015

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: 1 x 10min  (Tot: 10 min) Bin:2x2
Red: 1 x 5min  (Tot: 5 min) Bin:2x2
Green: 1 x 5min  (Tot: 5 min) Bin:2x2
Blue: 1 x 5min  (Tot: 5 min) Bin:2x2
Seeing: 3.5-4"

Equipment used:
ASA N12 Astrograph F/3.6
3" Wynne Reducer Corrector 0.73x
Atik 490 EX camera @-20C
No guiding

Filter:
Astrodon Ha 3nm, Baader LRGB

Location/Date:
Valla Observatory (FROSON, Sweden)
Feb 21, 2015

Image processing:
Images calibrated and processed in AstroPix
Calibration by applying Flat-Field
Color image with the AstroPix color LRGB tool.
Noise removal with the AstroPix Noise removal tool.

Image palette:
Red: Ha, and LRGB 

 Image information:
Scale: 0.92 arcsec/pix
FOW: 52x42 arcmin

Below you can see the Ha (3nm) narrowband filter image. 

IC 443Ha10min    


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