📅 17 October 1604
Johannes Kepler observed the bright new star of 1604 in the constellation Ophiuchus.
📅 17 October 1604
Kepler's dated observation became part of the record of the last supernova known to have been visible in our Milky Way.
📅 17 October 1604
Observers could see this extraordinary object without a telescope; the remnant remains a subject of study.
📅 17 October 1604
The 1604 outburst furnished another striking challenge to the doctrine of immutable heavens.
