SATELLITES OF URANUS.
| Name. | Discoverer. | Mean distance from Uranus. Miles. | Sidereal period. d. h. m. | Maximum elongation. ″ | |
|---|---|---|---|---|---|
| 1. ARIEL | Lassell, September 14, 1847 | 124,000 | 2 12 28 | 12 | |
| 2. UMBRIEL | O. Struve, October 8, 1847 | 173,000 | 4 3 27 | 15 | |
| 3. TITANIA | Sir W. Herschel, January 11, 1787 | 285,000 | 8 16 55 | 33 | |
| 4. OBERON | ″ ″ | 381,000 | 13 11 6 | 44 |
SATELLITE OF NEPTUNE.
| Discoverer. | Mean distance from Neptune. Miles. | Sidereal period. d. h. m. | Maximum elongation. ″ | Apparent star magnitude. | |
|---|---|---|---|---|---|
| Lassell, October 10, 1846 | 223,000 | 5 21 8 | 18 | 14 |
GENERAL INDEX.
[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] X [Y] [Z]
A. Adams, J. C., [145]. Airy, Sir G. B., [145]. Anagram on Venus, [68]; on Saturn, [127]. Aphelion, [11], [102]. Apparent movements of the Planets, [12], [14]. Arago, D. J. F., [99], [124], [140]. Arctic regions of the Earth, [75]. Argelander, F. G. A., [178]. Aristarchus of Samos, [71]. Aristarchus (Lunar Mountain), [93], [94]. Asteroids, [110]. Aurora Borealis and spots on the Sun, [55]; and twinkling, [87]. Autumnal Equinox, [74]. Axial rotation of the Planets, [17], [183].
B. Barnard. E. E., [120], [134]. Barnard’s Comet, [168]. Bayeux Tapestry, [171]. Beer and Mädler; their map of the Moon, [96]. Belts on Jupiter, [115], [123]; on Saturn, [122]. Bergeron’s Experiment, [93]. Bessel, W., [124]. Biela’s Comet, [168]. Bode’s so-called “Law,” [110]. Bond, G. P., [132], [133]. Bouvard, A., [143]. Bradley, Rev. J., [144]. Bredechin’s theory of Tails of Comets, [157]. Brorsen’s Comet, [167].
C. “Canals” on Mars, [106]. Carpenter, J., [134]. Carrington, R. C., [46], [49]. Cassini, J. D., [36], [118], [128], [130], [136]. Ceres (Minor Planet), [112]. Challis, Rev. J., [146]. Charts, Celestial, [112], [147]. Chinese observations, [25], [172]. Clouds influenced by the Moon, [98]. Coggia’s Comet, 1874, [151]. Comets, [150]; periodic, [162], [170]; remarkable, [176]. Comparative sizes of the Planets, [11]. Comparative size of the Sun from the Planets, [17]. Compression of the Planets, [70], [122], [137]. Conjunction of the Planets, [14], [15], [66]. Copernican System, [72]. Copernicus, [72], [73], [76].
D. D’Arrest, [147]. D’Arrest’s Comet, [168]. Dawes, W. R., [106], [133]. Day and night, [12]. Day, length of, [74]. De La Rue, W., [35], [36], [49], [52]. Denning’s Comet, [168]. Density of the Planets, [17], [183]. Diameter of the Sun and Planets, [183]. Di Vico, [62], [63]. Di Vico’s Comet, [172]. Distance of the Planets from the Sun, [20], [183]. Donati’s Comet of 1858, [157], [163], [178]. Dufour on Twinkling, [84].