Jellyfish Nebula: Galactic supernova remnant


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. IC 443 is an extended source, having an angular diameter of 50 arcmin (by comparison, the full moon is 30 arcmin across). At the estimated distance of 5,000 ly (1,500 parsec) from Earth, it corresponds to a physical size of roughly 70 light years (20 parsec).

Imaging telescopes or lenses: TecnoSky Apo 70/420
Imaging cameras: Atik 314L+ Mono
Mounts: Skywatcher HEQ5 Pro
Guiding telescopes or lenses: TecnoSky Telescopio Guida 50/168
Guiding cameras: QHY5-II QHY-5 color
Focal reducers: GSO 0.75X
Software: Maxim DL 5 MaxIm DL Pro 5, Adobe Photoshop CS5 Photoshop CS5
Filters: Baader H-alpha 7nm
Dates: Jan. 8, 2014
Frames: Baader H-alpha 7nm : 6×1200″ -10C bin 1×1

Autor: Domenico De Luca

AstroPhotography of the day by SPONLI

03 February 2014

We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.