176 



Scientific Intelligence. 



1828. 

 Nov. 



Dec. 



3, Comet of September 1827 and September 1720. — In No. xvi. p. 362 

 of this Journal, we gave M. Walz's elements of the comet of September 

 1827, compared with those of the comet of 1720. 



The following elements of it, given by M. Nicolai, bring it still closer 

 to that of 1780. 



Passage of Perihelion. 



Mean time at Manheim, 1827, September, 11-69837 



Perihelion distance, _ _ - 0.13750 



Long, of Perihelion, - - 250° 58' 13" 4 



Long, of Node, - - 149 39 4 3 



Inclination of orbit, - - - 54 3 19 2 

 Motion retrograde. 



4. Elements of the orbit of the Planet Juno. — In this Journal, No. xv. 

 p. 167, we have given the position of the planet at the time of her opposi- 

 tion on the 25th of March 1828. 



The following elements of this planet have been given by Professor Ni- 

 colai of Manheim. 



Epoch of her mean long, on the 25th March, - O** 



At Manheim, - - - - 160° 29' 13".71 



Mean daily tropical motion, - - 813''.69304 



Long, of Perihelion, - - - 53°32'13".12 



Eccentricity, - • - - 14° 52' 21 ".66 



