58.0

71 32
248
234 49 57.7 316 54
56.1
317 21 4.7
304 57
34.9 301 56 36.0 312 33 52.4
45.4 119 0 16.2
111 51 59.4
8.8
180 6 33.9
98 57 33.4
20.7 27 37 24.7 107 O 24.5
1.6 14 44 57.6
226 7
260 40 8.1 245 5
15 9

19.0

1

48.7

1863. May,

30-0, B.

16.7

1862. Apr.

26 0, G.

4.5

1862. July,

210, B.

1857. Aug.

2.0, G.

326

1.1

167

39

30 29
98 26
226 27
56 34 13.1
124 9 6.7
139 49 24.2 62 24
302
53 58.3 108 4
234 50
23.9 61 14 30.0
87 40
8.9
311 56 4.5
29.6 66 3 57.4
12.1 283 40 58.5
73 59 95
155 10 34.1
6 29
285 39 12.6
105 34 22.0
69 52 4.3
71 20 46.7
42 34 35.2
112 58 27.6
146 41 34.5
225 47 29.8
335 3 21.7
247 46 19.5
132 1 30.2
116 18 19.1
294 35 2.8
86 7 34.3
116 34 11.4
16

75 359 52

19.1

334 40

76 212 29

32.5

77

2

67 10 1.7 58 9

31 18.8 355

4 40 28 48 39 25 78 334 2 34.2 121 13 173 41 79 206 42 40.0 44 20 45 50 80 218 7 20.7 61 25 2 31 45.1 48 17 29.6 29 35 82 26 50 33 131 12 48 94 4 24 98 26 18.9 11 8 34.6 112 15 23.0 111 56 37.4 89 9 29.8 135 20 6.5 72 59 35.3 167 31 16.1 177 48 29.0 180 7 31.9 43 17 30.3 335 6 0.4

12.1

23.1

17.9

9.8

1862. Oct. 24.5, G.

1.3 59.2 33.1

26.4

SYNOPTIC TABLE OF ELEMENTS (continued. See 357 a, Note F.)

NAMES OF DISCOVERERS AND DATES OF DISCOVERY OF THE ASTEROIDS.

Note.-Many of the names of the Asteroids appear to us very unhappily chosen. Thus, confusion is very likely to arise in printing or speaking, between Iris and Isis, Lutetia and Lætitia, Thetis and Metis, Thetis and Themis, Vesta and Hestia, Hygeia and Egeria, Egeria and Eugenia, Pallas and Pales. Is it too much to hope that the discoverers of the interfering members of these pairs will reconsider their names? It is not yet too late: the Nymphs, Dryads, Oceanidæ, &c., afford an infinite choice of classic names, graceful and euphonious. Metis is known to few as a mythological name, Pales to fewer as that of a female divinity, Nemausa to none as the name of anybody (the ancient name of Nismes was Nemausus).

III.

SYNOPTIC TABLE OF THE ELEMENTS OF THE ORBITS OF THE SATELLITES, SO FAR AS THEY ARE known.*

The distances are expressed in equatorial radii of the primaries. The epoch is Jan. 1. 1801, unless otherwise expressed. The periods, &c., are expressed in mean solar days.

The excentricities of the 1st and 2d Satellites are insensible, those of the 3d and 4th small, but variable, in consequence of their mutual perturbation.

3. SATELLLITES OF SATURN.

The longitudes are reckoned in the plane of the ring from its descending node with the ecliptic. The first seven satellites move in, or very nearly in, its plane; that of the 8th is inclined to it at an angle about half way intermediate between the planes of the ring and of the planet's The apsides of Titan have a direct motion of 30′ 28′′ per annum in longitude (on the ecliptic). orbit. The discovery of Hyperion is quite recent, having been made on the same night (Sept. 19. 1848), by Mr. Lassell, of Liverpool, and Prof. Bond, of Cambridge, U. S. Its distance and period are as yet hardly more than conjecture. Messrs. Kater, Encke, and Lassell agree in representing the ring of Saturn as subdivided by several narrow dark lines, besides the broad black divisions which ordinary telescopes show.

137

21

24

256 38

11

269 87

48