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 Brahe know that it is 7,500 light-years from Earth). This discovery was decisive for his choice of astronomy as a profession. Tycho was strongly critical of those who dismissed the implications of the astronomical appearance, writing in the preface to "De nova stella": ""O crassa ingenia. O caecos coeli spectatores"" ("Oh thick wits. Oh blind watchers of the sky"). The publication of his discovery made him a well-known name among scientists across Europe. Tycho continued with his detailed observations, often assisted by his first assistant and student, his younger sister Sophie Brahe. In 1574, Tycho published the observations made in 1572