290 PLANET SVHOi 



Obfervationc on was perceivable, it became necefTary to attend to the change* 

 th« planet Juno. that m ; ght happen in the fituation of any one of them. They 

 were delineated as in Fig. 1 , (Plate XIV.) which is a mere eye- 

 draught, to ferve as an elucidation to a defcription given with 

 it in the journal; and the flar marked k, was the new 

 object. 



Sept, 29. Being "the firfl clear night, he began a regular feries 

 of obfervations: and as the power of determining fmall angles, 

 and diflinctnefs in mowing minute difks, whether fpurious or 

 real, of the inflrument he ufed on this occafion, had been fuffi- 

 ciently invefiigated by the foregoing experiments, there could 

 be no difficulty in the obfervation, with refources that were 

 then fo well underflood, and have now been fo fully afcer- 

 tained. 



'* Mr. Harding's new celeflial body precedes the very 

 fmall liar in Fig. 3, between 29 and 33 Pifcium, and is a 

 little larger than that flar ; it is marked A. fg h are taken 

 from Fig. 1. I fuppofe g to be of about the 9Lh magnitude, 

 fo that the new flar may be called a fmall one of the 8th." 



With his ten-feet reflector, power 496.3, he viewed it atten- 

 tively, and comparing it with g and h, Fig. 3, could fund no 

 difference in the appearance but what might be owing to its 

 being a larger flar. 



By way of putting this to a trial, he changed the power to 

 879,4, but could not find that it magnified the new one more 

 than it did the flars g and h. 



" I cannot perceive any difk ; its apparent magnitude with 

 this power is greater than that of the flar g, and alfo a very 

 little greater than that of h ; but in the finder, and the night- 

 glafs g is confiderably fmaller than the new flar, and h is alfo 

 a very little fmaller." , . 



He compared it now with a flar which in the finder appeared 

 to be a very little larger; and in the telefcope with 879,4 the 

 ., apparent magnitude of this flar was alfo larger than that of 

 the new one. 



" As far as I can judge without feeing the afteroids of Mr. 

 Piazzi and Dr. Gibers at the fame time with Mr. Harding's, 

 ihe lafl miift be at leaf! as fmall as the fmallefl of the former, 

 vvhieh'is that of Dr. Olbers." 



" The flar k, Fig. 1 , obferved Sept. 24, is wanting", and was 

 therefore the object I was in fearch of, which by computation 

 mufl have been that day in the place where I faw it." 



3 "Th 



