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 plane 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 30,000 - 35,000 years ago.

This patch of sky in the constellation of Gemini is home to several supernovae. The most alluring and studied is the Jellyfish Nebula (IC443) about 5,000 light-years away that exploded between 3,000-3...

The Jellyfish Nebula – also known as IC 443 and Sh2-248 – is a supernova remnant located 5,000 light years away from Earth, in the constellation Gemini. The Jellyfish Nebula is too faint to be visible with the unaided eye.But it can be found near the foot of Castor.

Most of the sources used to create these nebula descriptions are listed in the notes section for each description. In some cases, for example the Avedisova, Humphreys and Reed catalogs, the source is used extensively and is not listed in the individual nebula descriptions.

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 plane 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.

SH2-248 (Jellyfish Nebula) This nebula is commonly imaged with both a wide field of view and deep sky imaging on the brightest part of the nebula. It is known more as IC 443 or by the common name of Jellyfish Nebula.

2020年7月18日 · sh 2-248（ic 443・超新星残骸）, 光度：–, 直径：50′, 分類： snr hii Sh 2-249（散光星雲） , 光度：–, 直径：80′, 分類： HII タカハシFSQ85ED(320mm f3.8), Pentax K-70（改造）、HEUIB-II, ISO3200, 90s x 16= 24分, TS-NJP, TemmaPC, α-SGRIII, 2020/03/20, 19h 20m, +0℃, 東御市・観測所

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 plane 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.

IC443 Sh2-248 (Jellyfish Nebula) is a galactic supernova remnant in the constellation Gemini. The supernova likely occurred 30,000 - 35,000 years ago and possibly created the neutron star CXOU J061705.3+222127

IC 443, also called the Jellyfish Nebula or Sh2-248 is a supernova remnant (SNR) located about 1,500 light years away in the constellation Gemini. This is the remains of a powerful blast that occurred between 3,000 and 30,000 years ago, but most probably around 10,000 years ago.