t 



TEMPORARY STARS. 155 



transition of the cosmical vapor into clusters of stars, of an 

 agglomerative force, of a concentration to a central nucleus, 

 and of hypotheses of a gradual formation of solid bodies out 

 of a vaporous fluid — views which were generally received in 

 the beginning of the nineteenth century, but which at pres- 

 ent, owinsf to the ever-changing fluctuations in the world of 

 thought, are in many respects exposed to new doubts. 



Among newly-appeared temporary stars, the following 

 (though with variable degrees of certainty) may be reckoned. 

 I have arranged them according to the order in which the/ 

 respectively appeared. 



(a) 134 B.C in Scorpio. 



(b) 123 A.D in Ophiuchus. 



(c) 173 " in Centaurus 



(d) 369 " ? 



(e) 3S6 " in Sagittarius. 



(/) 389 " in Aquila. 



(o-) 393 " in Scorpio. 



(h) 827 " in Scorpio. 



(^) 945 " between Ccphcus and Cassiopeia. 



{k) 1012 " in Aries. 



(/) 1203 " in Scorpio. 



(?7i) 1230 " in Ophiuchus. 



(?^) 1264 " • between Cepheus and Cassiopeia. 



(o) 1572 " in Cassiopeia. 



0^) 1578 " 



(q) 1584 " in Scorpio. 



(r) 1600 " in Cygnus. 



(s) 1604 '• in Ophiuchus. 



(t) 1609 ''• 



(u) 1670 " in Yulpes. 



{v) 1848 " in Ophiuchus. 



EXPLANATORY REM.VRKS. 



(a) This star first appeared in .July, 134 years before our era. We 

 have taken it from the Chinese Records of Ma-tuan-lin, for the transla* 

 tion of which we are indebted to the learned linguist Edward Biot 

 {Connaissance des Temps pour Van 1846, p. 61). Its place was between 

 ^ and p of Scorpio. Among the extraordinary foreign-looking stars of 

 these records, called also guest-stars {iioiles holes, " Ke-sing," strangers 

 of a singular aspect), which are distinguished by the observers from 

 comets with tails, fixed new stars and advancing tailless comets are cer- 

 Sainly sometimes mixed up. But in the recoi'd of their motion (Ke-sing 



tails of comets (the vapory radiation from their nuclei) with the galaxj 

 to which I have a'ready alluded. {Cosmos, vol. i., p. 103.) 



