The Kepler’s Supernova, an object of much study

Supernova 1604, also known as Kepler’s Supernova, or Kepler’s Star, was a supernova of Type Ia that occurred in the Milky Way, in the constellation Ophiuchus.   What is the Kepler’s Supernova? Appearing in 1604, it is the most [ … ]

The Cygnus Loop, a supernova remnant

The Cygnus Loop  or Sharpless 103 is a large supernova remnant  in the constellation Cygnus, an emission nebula measuring nearly 3° across. Some arcs of the loop, known collectively as the Veil Nebula or Cirrus Nebula, emit in the [ … ]