Tycho's star

Tycho's star

A type I supernova that was observed in 1572 in the constellation Cassiopeia and was studied by astronomers in Europe, China, and Korea. Tycho Brahe's careful observations of its position have allowed modern astronomers to identify it with a known radio and X-ray source, which is the expanding supernova remnant. It was considerably brighter than Kepler's star of 1604, reaching a magnitude of –4 and remaining visible for about 18 months.

Tycho's star

[′tī·kōz ′stär]
(astronomy)
References in periodicals archive ?
Nova Cygni was a less destructive event than Tycho's star and involved only the explosive ejection of an outer envelope of gas.
Cassiopeia presides overhead more or less as she did on November 11, 1572, when Tycho spotted her stars hosting the supernova that became known as Tycho's Star. He later wrote he was "contemplating, as usual, the celestial vault," territory he knew as well as his own neighborhood, when he saw "with inexpressible astonishment, near the zenith, in Cassiopeia, a radiant star of extraordinary magnitude."