Date | Text | |
---|---|---|
09 Oct 1604
supernova |
supernova (astronomy) The supernova which becomes known as Kepler's Supernova (SN 1604) is first observed from northern Italy. From 17 October, Johannes Kepler begins a year's observation of it from Prague. As of 2006, this is the last supernova to be observed in the Milky Way, and the last visible by the naked eye until 1987. |