Was Kepler's supernova unusually powerful?
Tuesday, September 11, 2012 - 12:30
in Astronomy & Space
(Phys.org)—In 1604, a new star appeared in the night sky that was much brighter than Jupiter and dimmed over several weeks. This event was witnessed by sky watchers including the famous astronomer Johannes Kepler. Centuries later, the debris from this exploded star is known as the Kepler supernova remnant.