The Jellyfish and Sharpless 249 Nebulae
IC 443 and Sh 2-249 in Gemini
are an interesting and diverse pair. Flanked by two bright stars, Mu and Eta Geminorum, the Jellyfish is the brighter arc of emission at upper-left, while the larger cloud towards bottom-right is Sharpless 249. Sh 2-249 is an emission nebula, while the Jellyfish is a bubble-shaped supernova remnant- the expanding debris cloud of a massive exploded star. The presence of a neutron star is the remnant of the collapsed stellar core. A starless version appears below. Many thanks to my friend Terry Hancock of Grand Mesa Observatory for providing me this fine data.
LARGE
are an interesting and diverse pair. Flanked by two bright stars, Mu and Eta Geminorum, the Jellyfish is the brighter arc of emission at upper-left, while the larger cloud towards bottom-right is Sharpless 249. Sh 2-249 is an emission nebula, while the Jellyfish is a bubble-shaped supernova remnant- the expanding debris cloud of a massive exploded star. The presence of a neutron star is the remnant of the collapsed stellar core. A starless version appears below. Many thanks to my friend Terry Hancock of Grand Mesa Observatory for providing me this fine data.
LARGE
