ON THE NEW PLANETS CERES AND PALLAS. 215 



Pallas and Ceres are now too near to the fun, and the twi- Thefe planets 

 light permits no meridian obfervations. But aftronomers who tw j U . u 

 are provided with equatorials of great perfection, as, for in- 

 ftance, thofe of Greenwich, Oxford, Richmond, and of Sir 

 George Shuckburg, will be able to follow thefe two planets a 

 longer time. The obfervation of Pallas will chiefly be of a 

 very great value, as the feries of meridian obfervations is not 

 for above five weeks. If more obfervations are not procured, 

 it will be with fome difficulty we (hall find Pallas again next 

 year ; for the elements of an orbit calculated upon fo fmall an 

 arc as 7|°, may give an error of feveral degrees in January 

 1803. You will do, molt honoured Sir, a great benefit to 

 icience in general, and to aftronomy in particular, if you en~ 

 gage the Englifli aftronomers, who have fo very excellent and 

 fixed equatorial feclors, to follow Pallas out of the meridian as 

 far as they can. For this purpofe, I take the liberty to fend 

 you here an ephemeris of this planet's motion, calculated by 

 Mr. Gaufs, which will enable aftronomers to find it, and pur- 

 fue their obfervations. 



Ephemeris of the Pofition of Pallas for Midniglit, in Seeberg Ephemeris of 

 Obfervatory. * aUas « 



I am, with the greateft efteem and regard, 



MOST HONpUKED SIR, 



Your moft humble and 

 obedient fervant, 

 FRANCIS BARON DE ZACH. 

 XVII. Method 



