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

N. B.-The distances are expressed in equatorial radii of the

primaries. The epoch is Jan. 1. 1801. The periods, &c. are expressed in mean solar days.

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The excentricities of the 1st and 2d satellite are insensible, that of the 3d and 4th small, but variable in consequence of their mutual perturbations.

E E

III. SATELLITES OF SATURN.

Mean
Distance.

Sidereal
Revolution.

Excentricities and Inclinations.

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3•351 od 22h 38" The orbits of the six interior 4.300 | 1 8 53 satellites are nearly circular, 5•284 1 21 18 and very nearly in the plane of 6.819 2 17 45 of the ring. That of the seventh 9.524 12 25 is considerably inclined to 22.081 15 22 41 the rest, and approaches nearer 64.359 797 55 to coincidence with the ecliptic.

· IV. SATELLITES - OF URANUS.

Sat
Sat.

Mean
Distance.

Sidereal Period.
Si Dorina

Inclination to Ecliptic.

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50 21" 25m 0s | Their orbits are inclined

8 16 56 5 | about 78° 58' to the 1 10 23 4 0 ecliptic, and their motion | 13 11 8 59 is retrograde. The pe| 38 1

riods of the 2d and 4th 107 16

require a trifling correction. The orbits appear to be nearly circles. .

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