OF THE COSMOS. NEW STARS. 143 



time (July 1264) there appeared a great comet, whose 

 tail extended over half the sky, and which therefore could 

 not be confounded with the star described as having shone 

 forth between Cepheus and Cassiopeia. 



o. The star of Tycho Brahe, of the llth of November 

 1572, in Cassiopeia's chair; B. A. 3 26'; Decl. 63 3' 

 (for 1800). 



p. February 1578, from Ma-tuan-iin. The con- 

 stellation in which the star appeared is not given ; but 

 the intensity and radiation of its light must have been ex- 

 traordinary, since the Chinese notice has appended to it a 

 note, saying " a star as great as the sun \" 



q. ] st of July 1 584, not far from IT Scorpii ; a Chinese 

 observation. 



r. The star 34 Cygni, according to Bayer. Wilhelm 

 Janson, the distinguished geographer, who for some time 

 observed with Tycho Brahe, first had his attention arrested 

 by the new star in the breast of the Swan, (at the com- 

 mencement of the neck), as an inscription upon his 

 celestial globe testifies. Kepler being prevented, both by 

 his journeys and by the want of instruments after Tycho 

 Brahe's death, did not begin to observe it until two 

 years later, and (which is the more surprising, as the star 

 was of the 3rd magnitude) he even was not until then 

 aware of its existence. He says : " Cum mense Majo anni 

 1902 primum litteris monerer de novo Cygni phse- 

 nomeno ..." (Kepler de Stella nova tertii honoris in 

 Cygno 1606, appended to the work de stella nova in 

 Serpent, p. 152, 154, 164, and 167). In Kepler's me- 

 moir it is never said (as it has often been in more modern 

 writings) that the star in the Swan, on its first appearance, 



