Astronomy. A57 
V. AstTRoNomyY. 
1, New Comet, (Astron. Journal, No. 54.)--A telescopic comet 
was discovered near star 63 in the Constellation Eridanus, March 
8, 1853, by Mr. Chas. W. Tuttle, assistant at Harvard College Ob- 
servatory. 
2. Thalia, (Astron. Jour., No. 55.)—The following elements of this 
planet have been communicated by W. Oeltzen of Vienna. They are 
Computed from observations at Liverpool Dec. 16, Berlin Dec. 29, 
and Hamburg, Jan. 11. 
Epoch, 1852, December 29°37907, m. t. Greenwich. 
Mean anomaly, - 324° 30/ 35/0 ) Mean Eqx. 
Long. of asc. node, - - 67 52:42 at 1853°0. 
Inclination, - : - 19 27 0 
Angle between perih. and node, 54 44 27-7 
Angle of excentricity, - 12 31 26-1 
Log. of semi-axis major, 0-212976 
s mean daily motion, - 2930543 
3. Fortuna, (Astronom. Nachrichten, No. 836.)—-The following ele- 
ments were computed by Mr. Carl Brulins from Berlin observations of 
Aug, 28, Sept. 27 and Oct. 27. 
Epoch 1852, Sept. 27:354061. 
Mean anomaly, - + julieen juste een BRE. i Mit 
“longitude, - - eo! - ~~ a re . 
. of perihelion, - - - - 
se - node, - - - - 211.16 57 6 
Inclination, ™ x “ - + 32 35 -0 
ngle of excentricity, . - = - - 9 48 18 ‘9 
Log. of semi-axis major, - - - 0:390678 
“mean daily motion, - +. - 2963990 
» 4. Parallax of a Star.—In a previous No. of this Journal* it was 
Stated that M. H. Faye, of Paris, had found for the parallax of an un- 
hamed star in Ursa Major (1830 of Groombridge’s Catalogue of Cir- 
cumpolar Stars) 1706. M. Peters, on the contrary, made it only 
028 ; ichmann, 0-18; and M. Otto Struve, 0703. In these 
Investigations it was assumed that the stars of comparison had no par- 
allax. “M. Wichmann has continued his labors upon this star, and the 
New results to which he has arrived are given in part in a letter to M. 
aye; a part of which is here given in translation from the Compies 
Rendus (tom. 35, p. 859, Dec. 13, 1852). 
“During the past year I have made with the aid of the heliometer a 
New series of observations upon this star (1830 G.) using for compari- 
Son not only the stars selected by Schlueter, but also the star used by 
yourself. ‘This last I designate by a”, and those of Schlueter by a and 
5 (@’ and a’ being situated upon one side of 1830 G. and a upon the 
* 2d Series, vol. iii, p. 444. 
Szconp Serres, Vol, XV, No. 45.—May, 1853. bog 
