3.03 Kepler's Supernova

Kepler's supernova appeared in Oct. 1604, lighting up the sky from it's location in Ophiucius. It was studied by Johannes Kepler without the aid of a telescope. This is the remnant of the supernova. Modern astronomers wanted to know what kind of star made this supernova, so recent surveys of the remnant across the EM spectrum has shown it to have been a type Ia supernova, made by a white dwarf. The remnant is 13,000 light years away, and represents the most recent supernova in the Milky Way.