UeJleQhiis en the nezu Vianet. 79 



fents a planet, and the upper a fixed ftar: it iliould. iadeed, 

 denote a fixed ftar become a planet. But as this cl)ara6ttyr 

 has been already introduced in the Vienna EpheiiurUes, in 

 order to prevent mifconception it ought to lie inverted. The 

 chara6ters of the Earth 5 , and Venus ? , have the fame 

 atlinity, as well as thofe of Mars (^ an<l Uranus J. 



POSTSCRIPT. 



"While the laft flieet of this paper was printing we received 

 from our worihv friend Dr. Olbers, of Bremen, the following 

 element.- of the orbit of Hera, which he calculated in a circle 

 from the obfervations communicated to liini by Piazzi: 

 Semidiamcter of the orbit - - ^"95'^ 



Longitude of the aii:;ending g - 2* 'zi"^ 55' 



Inclinatiou of the orbit - - 7 



Hcliocent. long. .Ian. ill. 1801 - 3 7 45 



Sidereal revoluiioa - i85r'6 days = 5'o694 years^r 



Daily heliocent. motion - - 11' 39-95" 



Yearly motion _ . _ 71c j' 



This orbit is very infuflicient, as it is calculated on the hv- 

 pothells of a circle; the very imperfecl obfervations wei-e 

 only 22 days diitant from each other ; and, as Dr. Olbers 

 very well obferves, the lines of fight do not lie advantageouflv. 

 Dr. Olbers is alfo of opinion that thcfe elements are not fuf- 

 ficient to calculate a planet fo long before, in order to be able 

 to find it aajaln on its reappearance in the morning in Auguft, 

 In the month of Augult it will pafs through the whole ficn 

 of Cancer, and muit be fought for in the equino(3ial point. 

 From the ift to the 3 id of Auguft, a zone of the heavens 

 from 1 15"^ to 130 of right alccniion, and from 22° to 24"* 

 north declination, muft be carefully learclied ; for this will 

 be the diftrlA of the heavens where the planet will, in all 

 probability, be found in that month. 



Ju the oldeft periods Latin verfes hnve been invented 10 

 denote the order of the planets in regard to their ditiance 

 from the fun. Thus, for example, we liave the old well- 

 known verfes: 



Saturni atqi;e Jovis Sitlu^, Mar?, Sol, \'cmis alma, 

 Mercurius, claudit ultima Luna choruin. 



On the difcovery of Hcrfchers plaoet, Foinfinet dti Sivrv 

 wiOied to have it called C^ybelc or Cjbclic, after tlio wife of 

 Saturn, the ncarcft planet below it; and exprclled the order 

 of the feveu planets in the following three Latin verfes: 



AmMt SoltiTi Hltiiius, Venus hunt, mox Terra, Diana, 

 Mars r-tj'iitiir I'cTi'.it rex Jupiter. Hunc SaturnUj. 

 Omiio hoi otbr^ airplctlitur alma CubtlJc. 



One 



