EE a gee ee € ee cee ai gs aT 
Astronomy. AAT 
its companion at least twofold, both in quantity and intensity of its light. 
From this time the companion dwindled away most rapidly, and by the 
fore part of March, it was so faint as to be very difficult of measure- 
ment, although Biela continued in good view. 
This companion was perhaps equally remarkable for its changes of 
distance from Biela. ‘The Ist of January its distance was about one 
minute of space. Jan. 14th, the distance was 16; Feb. 18, distance 
58. The distance of the comet from the earth Jan. 14th, was “790; 
Feb. 18, :502; so that if we suppose the line joining the two bodies to 
have been constantly présented to us at the same inclination, their ab- 
solute distance from each other must have more than doubled in one 
month. Prof. Challis, of Cambridge, Eng., noticed this phenomenon 
for the first time, Jan. 23, and has furnished the following table of rela- 
tive positions. 
Angle of Distance. 
| Mean time. a AR. Th ie position. 
h 8. u ° 
Jan. 23, ba | 5:18 1229 | 327 43 | 145-4 
24, 7:0 511 126°6 | 328 48 | 148-0 
as 6°4 5°84 1446. | 828 48 | 169-1 
i ae, 6:3 5°77 151-1 | 330 12) 17471 
$$::7:29, 74 5-44 154'4 | 332 10 | 1746 
Feb. 11, 74 7:38 249-'7 |336 8 | 273-1 
« +12, vy | 7:86 952:7. 01 B85. '.3.|. 278-7 
ay 75 8°30 2649 | 334 54 | 292°6 
3. The Bond Comet.—A new telescopic comet was discovered by 
Geo. P. Bond, of the Cambridge (Mass.) Observatory, on the evening 
of February 26, 1846. The following parabolic elements of the 
comet were obtained by Mr. Bond, from observations thereto annexed 
taken at that observatory, and referred to the mean equinox of January 
1, 1846. 
Perihelion passage, Mch. 5.5376 Greenw. m. s. t. 
Perihelion distance, 06673 
Longitude of perihelion, 89° 51! 15" 
‘ * asc. node, 76° 59’ 29” 
Inclination, 84° 46’ 32” 
otion, direct. 
1846. Camb. m. s. t. 
Feb. 26.3415. A.R. 1202575 — N. Dec, 3° 19' 17” 
Mch, 1.3164. s¢._-Jh Om 92-9" et ieee 
6“ 4.3215. 6c jh Om 1°5s ec 6 49° 46) 5!’ 
The subjoined set of parabolic elements was obtained from obser- 
vations made by Mr. Francis Bradley, at the Yale College Observatory. 
