Energy spectrum
Here's is the SN 1604 of the Ophiuchus, it was a supernova also called Kapler's star that was a Type Ia. It is the most recent supernova in our galaxy to have been unquestionably observed by the naked eye, occurring no farther than 6 > kiloparsecs (20,000 light-years) from Earth. Johannes Kepler was the astronomer who descobered this and he puted into his book called De Stella Nova.
Here's the analaysis energy spectrum of the Sn 1604:|
Energy spectrum |