Tag Archives: IC 443

Jellyfish Nebula

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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 yearsfrom 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.

Imaging telescopes or lenses: Takahashi Sky 90
Imaging cameras: Canon / CentralDS EOS 60D
Mounts: Sky-Watcher EQ-6 Skyscan
Focal reducers: Takahashi Sky 90 Flattener/Reducer 407mm
Software: PixInsight, BinaryRivers BackyardEOS
Dates: April 21, 2012
Frames: 12×480″ ISO1600 -15C
Integration: 1.6 hours
Darks: ~14
Flats: ~21
Bias: ~21

Author: Emanuele Todini
AstroPhotography of the day by SPONLI 20 Sep 2014

Jellyfish Nebula: Galactic supernova remnant

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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

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