2021年12月24日 M1: The Crab Nebula Image Credit & Copyright: Michael Sherick Explanation: The Crab Nebula is cataloged as M1, the first object on Charles Messier’s famous 18th century list of things which are not comets. In fact, the Crab is now known to be a supernova remnant, debris from t […]
2021年05月19日 The Jellyfish and Mars Image Credit & Copyright: Jason Guenzel Explanation: Normally faint and elusive, the Jellyfish Nebula is caught in this alluring scene. In the telescopic field of view two bright yellowish stars, Mu and Eta Geminorum, stand just below and above the Jellyfish N
2021年01月23日 Recycling Cassiopeia A Image Credit: X-ray – NASA, CXC, SAO; Optical – NASA,STScI Explanation: Massive stars in our Milky Way Galaxy live spectacular lives. Collapsing from vast cosmic clouds, their nuclear furnaces ignite and create heavy elements in their cores. After a few
2021年01月18日 The Medulla Nebula Supernova Remnant Image Credit & Copyright: Russell Croman Explanation: What powers this unusual nebula? CTB-1 is the expanding gas shell that was left when a massive star toward the constellation of Cassiopeia exploded about 10,000 years ago. The star likely deto
2020年12月10日 Simeis 147: Supernova Remnant Image Credit & Copyright: Georges Attard Explanation: It’s easy to get lost following the intricate looping filaments in this detailed image of supernova remnant Simeis 147. Also cataloged as Sharpless 2-240 it goes by the popular nickname, the Sp
