1p Scientific Intelligence. 
2. Seventeenth Asteroidal Planet— Thetis, (Astr. Jour., No. 40.) 
——A new planet was discovered April 17, 1852, by Mr. Luther, at 
the Observatory at Bilk, near Diisseldorf. Its light was very faint, and 
its position at April 17, 10 87" 395 m. t. Bilk, was R. A. 180° 38) 24”, 
and north declination 8° 49/ 2”, 
ane following elements of the orbit have been computed by Dr. 
Briinnow of Berlin, from observations of April 17, 21 and 25. : 
1852, April 17-0, m. t. Berlin. 
Mean longitude, . : , : 303° 57 38-6 
Longitude of perihelion, . i : 259 48 29 3 
ss * asc. node, . . é 124 27 33 °5 
Inclination, . j : ; 5 37 40 °9 
ngle of excentricity, . j : 7 47 29-1 
og. semi axis-major, 0:402348 
pendently by Mr. G. P. Bond at the Cambridge Observatory, Mass. 
Mr. Bond has published the following elements computed from the 
observations of May 18, 21 and 25. 
Perihelion passage, April- 19-5446, Greenwich m. t. % 
Longitude of perihelion, . . . 280° 17! 49”) M. Eqx. 
“ node, . ‘ . 317 17 54 § 1852°0. 
Sniceat) Se cane ; 48 32 
Log. of perih. distance, . ; : 995645 
Motien, . ‘ ‘ Retrograde. 
northwest a segment of an auroral are, belt, or beam, entirely isolated, 
moderately brilliant, having well-defined margins, 
time a faint light in the north, but there was no other auroral a 
ance with which this beam could be confounded. As an opportu 
observers. 
At $b 25™ mean time New Haven, the auroral beam stands up from 
the westerly horizon, about one degree wide, cutting with its souther 
ge the star Castor, and extending up to 
38 Lyncis. There is nothing of the ki 
° - ards the easterly horiz rever, 
obstructed by clouds and buildings." NOwSYeR> 
