Tycho Brahe personalities. When Tycho and Vedel returned from Leipzig in 1565, Denmark was at war with Sweden, and as vice-admiral of the Danish fleet Jørgen Brahe had become a national hero for having participated in the sinking of the Swedish warship "Mars" during the First battle of Öland (1564). Shortly after Tycho's arrival in Denmark, Jørgen Brahe was defeated in the Action of 4 June 1565, and shortly afterwards died of a fever. Stories have it that he contracted pneumonia after a night of drinking with the Danish King Frederick II when the king fell into the water in a Copenhagen
Tycho (lunar crater) early as 1645, when Antonius Maria Schyrleus de Rheita depicted the bright ray system. Tycho is named after the Danish astronomer Tycho Brahe. Like many of the craters on the Moon's near side, it was given its name by the Jesuit astronomer Giovanni Riccioli, whose 1651 nomenclature system has become standardized. Earlier lunar cartographers had given the feature different names. Pierre Gassendi named it Umbilicus Lunaris ('the navel of the Moon'). Michael van Langren's 1645 map calls it "Vladislai IV" after Władysław IV Vasa, King of Poland. And Johannes Hevelius named it 'Mons Sinai' after Mount Sinai. By convention these