576 



coUision of Mars wilh a large comel in 1315 or 1316, ihal iho 

 comet was thereby brokcn into Ihrec parls , whose or bits (il 

 may be presumed) received cven then their present form; viz., 

 that still presenled by the comels of 1812, 1815 and 1846, which 

 arc Iragments of thc dissevcrcd comet.« 



^ (@. 559.) Savlrtce, Expos, du Syst. du Won de (ed. 

 1824) p. ii4. 



* (®. 559.) lieber (Kometen im 9(at uraenialbe f. .So'^niO'5 

 «t). 1. e. 105—120 iiub 389—393 2liim. 12-27. 



•" (@. 560.) 3» fttbt» Ijalbeii 3«l)rl)wiiberteu i'ou 1500 bü 

 1850 finb jufammeii 52; euxielw in bor Oxeil)enfolge von ftcbeu ijlei: 

 c^eu ipi'rioben: 13, 10, 2, 10, 4, 4 unb 9, bem Höfen 2(uac 

 fic^tbare (Someten iit Europa erfcl^ieuen. Ji>ier folgen bte etiu 

 jelnen S^^)!'^- 



1500-1550 



13 (5oni. 

 1600—1650 



1607 



1618 



2 (5oni. 



4 Som. 



1550-1600 



10 Soni. 

 1650—1700 



1652 



1664 



1665 



1668 



1672 



1680 



1682 



1686 



1689 



1696 



4 (Jörn. 



1800—1850 

 1807 

 1811 



