306 Comets. 



writers mention a comet in August, but Pingre considered 

 that their description applied rather to an aurora. 



1530. On November 30, a comet was seen. — (Oonradus 

 TTrspergensis, Ghronicon.) 



1532. A comet appeared in the spring. — (G-aubil.) On 

 March 9, a star with a tail appeared in the S.B. ; after nineteen 

 days it disappeared. — (Biot.) 



1534. A comet appeared in July. — (Cavitellius Annates Gre- 

 monenses.) On June 12, a star was seen near it Cygni, k An- 

 dromedse, etc. ; it passed Andromeda?, and entering v, %, o, tt 

 Cassiopeia?, disappeared after twenty-four days. — (Biot.) 



1536. On March 24, a star was seen near /3, 7 Draconis ; 

 it went eastwards, and passing to the W. of 8, e, it, £ Draconis, 

 came to the Milky Way, and disappeared on April 27. — 

 (Biot.) 



1538. On January 17, P. Apian saw a comet with a tail 

 30° long, in 5° of Pisces, with a latitude N. of 17°. On the 

 22nd, Gemma Frisius observed it in 9° of Pisces, with a lati- 

 tude N. of 11°.— (Pingre, Gomet, i. 499.) 



1539. On April 30, a comet with a tail 3° long was seen. 

 It remained visible for three weeks, and swept a and 7 Leonis. — 

 (Biot, etc.) On May 11 (?), Gemma Frisius observed it in 5° of 

 Leo, with a latitude N. of 1 2°. On May 1 7, at ten hours in the 

 evening, its position, according to Apian's observation, re- 

 duced by Pingre, was 20° of Leo with a latitude S. of 4-F. — 

 (Pingre, i. 500.) 



1545. A comet was seen for several days this year. No 

 month is named. — (Aretius, Brevis Gomet. Mxplicat.) 



1554. On June 23, a comet was seen, which passed from 

 8 to 6 Ursse Majoris. It lasted four weeks. — (Biot.) 



1557. In October, the sun being in Libra, a comet was 

 seen in the W. in Sagittarius. — (Carnerarius, Gometce.) On 

 October 22, a comet was seen near A. of Limchi. It lasted 

 till the next moon. — (Biot.) 



1560. In December, a comet appeared for a month. — 

 (Thuanus, Historice, xxvii. 11.) 



1569. On November 2, a comet was seen in Ophiuchus, 

 and in the signs Sagittarius and Capricornus. Its movement 

 in longitude equalled the extent of these two signs, and it 

 remained visible till November 19. — (Kepler, de Gometis.) It 

 lasted from November 2 to November 28. — (Biot) 



1578. On February 22, a star as large as the sun appeared. 

 — (Biot.) European writers mention a comet and a hairy star. 

 The latter on April 1, as Tycho Brahe's comet of 1577 } 

 remained visible till January 1578. Pingre thinks that this is 

 the object described as the comet of 1578; the hairy star of 

 April he considers to have been a meteor. 



