IC 443 – The Jellyfish Nebula

IC 443

The Jellyfish Nebula

Faint and elusive

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Normally faint and elusive, the Jellyfish Nebula is caught in this alluring telescopic field of view. The entire scene is using narrowband image data, with emission from sulfur, hydrogen and oxygen atoms shown in red, green and blue hues. It’s anchored right and left by two bright stars, Mu and Eta Geminorum, at the foot of the celestial twin. The Jellyfish Nebula itself is left of center, the brighter arcing ridge of emission with dangling tentacles. In fact, the cosmic jellyfish is part of bubble-shaped supernova remnant IC 443, the expanding debris cloud from a massive star that exploded. Light from the explosion first reached planet Earth over 30,000 years ago. Like its cousin in astrophysical waters the Crab Nebula supernova remnant, the Jellyfish Nebula is known to harbor a neutron star, the remnant of the collapsed stellar core. An emission nebula cataloged as Sharpless 249 fills the field at the lower right. The Jellyfish Nebula is about 5,000 light-years away. At that distance, this image would be about 300 light-years across.

The Jellyfish Nebula in Gemini

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Technical card

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ObjectIC 443
Imaging telescopesCelestron Rowe-Ackermann Schmidt Astrograph 11″
Imaging cameraQHY268M
Mount iOptron CEM60
GuidingGuidescope 130mm, ZWO ASI 120M
FilterBaader 3.5 / 4nm f/2 Ultra-Highspeed-Filter-Set 50mm² (H-alpha / O-III / S-II), Baader R, G, B (50mm²)
AccessoriesBaader UFC, Baader UFC-Tilter,  Celestron Focus Motor for SCT
Integration24 hours, H-Alpha: 205×180″, OIII: 108×180″, SII: 112×180″, RGB each: 120×30″
Dates of recording8 nights between February 2022 and March 2022
AstroBinLink

Awards

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AstroBin Image of the Day (07/21/2022) – Link to publication

IC 443 PRINT

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