[ il(S ] 



LXIII. Observations on the Comet in Pegasus, April and May 

 1830, made at Geneva bif Mr. Wautmann; and its Elements 

 calculated by C. Rumker, Esq. M. Astr. Soc* 



^t "'HE following observations have been made of this comet, 

 ■*• at Marseilles, Geneva, and Chougney, a villa near Geneva. 



The places of the comet given by Mr. Wartmann are 

 only approximated ones, he not having reduced his observa- 

 tions as yet. The comet was visible to the naked eye, and 

 appeared like a star of the fifth magnitude, with a nebulous and 

 circular nucleus of from 9" to 10" diameter, and a tail of about 

 1^ degree. After the 10th April the comet diminished gra- 

 dually in magnitude and splendour, although still visible to the 

 naked eye. The nucleus measured but 4' or 5' diameter, and 

 the tail only | of a degree. On the 6th May the nucleus 

 could no longer be distinguished, and barely some traces of 

 the tail. 



From the above observations I have deduced the following 

 elements. 



Transit over the perihelion, 14th April, at 8^ 30' 54" M. T. 

 Greenwich. 



Longitude of | ^'^''^Z^' , f ^f ^J' 'f "P«" ^^'^ «>-^'^- 

 ^ ( Asc. Node 204 53 9. 



Logarithm of perihelion distance 9"97'37'568. 



Inclination of orbit 18° 39' 44". 



Motion direct. 



LXIV. Letters from the President and Secretary of the Royal 

 Society, in refutation of an alleged Inaccuracy in the Minutes 

 of the Council \. 



To the President of the Royal Society. 



Dear Sir, 



TT having been publicly asserted by a Fellow of the Royal 



•*■ Society that a minute of the Council held on the 2Gth of 



* Communicated by Mr. Rumker. f Comnumicated by Dr. Roget. 



November 



