Page:Gods Glory in the Heavens.djvu/384

Eccentricity of orbit, annual decrease,	.0312402
Longitude of perihelion,	89° 9′ 29″.8
Longitude of perihelion,— — — annual increase,	19″.4
Longitude„ ascending node,	111° 56′ 37″.4
Longitude„ ascending node, annual decrease,	19″.4
Inclination of orbit to ecliptic,	2° 29′ 35″.7
Inclination of orbit to ecliptic,— — — annual decrease,	0″.155
Motion, mean daily,	2′ 0″.6
Motion— — —, in 365 days,	12°13′36″.08
Inclination of axis to ecliptic,	31° 19′.0
Rotation on axis,	18h. 29m. 17s.
Revolution, sidereal, in days,	10759.2197106
Revolution,— — — synodical,	378.090
Mean arc of retrogradation,	6° 44′

SATURN'S RINGS.

Bright ring, exterior diameter in miles,	176,418
Bright ring,— — — breadth of exterior division,	10,573
Bright ring,— — — interval between the two divisions,	1,791
Bright ring,— — — exterior diameter of interior division,	151,690
Bright ring,— — — breadth of interior division,	17,175
Bright ring,— — — time of rotation,	10h, 35m. 15s.
Dusky ring, breadth,	6,350
Dusky ring„ interval between inner edge and Saturn,	7,460
Divisions, seen by Bond,	2
Divisions— — — discovered by Bond in the year	1850
Years in which it will reach the planet by increase of breadth of system of rings (O. Striive),	125
Breadth of whole system of rings,	35,889
Exterior division of bright ring, exterior diameter,	40″.44
Exterior division— — — new sub-division, exterior diameter (Encke),	37″.47
Exterior division— — — new sub-division, interior diameter,	36″.04
Divisions of exterior bright ring, seen by Kater,	4