APPENDIX.—TABLES OF THE SOLAR SYSTEM.
Reading edition
THE SUN AND PLANETS.
Name. Sidereal period. Mean distance from Sun. Millions of miles. Diameter. Miles. Surface. Earth=1. Volume. Earth=1. Mass. Earth=1. Density. Earth=1. Axial Rotation. d. h. m. Force of gravity. Fall: Ft. in 1 sec. Velocity in orbit. Miles per hour
SUN ..... ..... 866,200 11,946 1,305,000 332,000 0.25 25 7 48 461
h. m. s.
MERCURY 88 days. 36 3,008 0.144 0.055 0.066 1.26 24 5 30 7 107,000
VENUS 225 ″ 67 7,480 0.891 0.841 0.782 0.92 23 21 23 14 78,000
EARTH 365 ″ 93 7,926 1.000 1.000 1.000 1.00 23 56 4 16 66,000
MARS 687 ″ 141 5,000 0.398 0.251 0.107 0.45 24 37 23 4 53,000
Minor Planets
Eros (433) 1.76 years. ..... 18 Eros is the nearest to the Sun of the Minor Planets, part of its orbit falling between the Earth and Mars.
Vesta (4) 3.6 ″ 219 214 Vesta is the largest of the Minor Planets.
Thule (279) 8.8 ″ 396 ..... Thule is the most distant from the Sun of the Minor Planets.
JUPITER 11.8 ″ 483 88,439 124 1,389 317 0.23 9 55 21 41 29,000
SATURN 29.4 ″ 886 75,036 89 848 94 0.11 10 29 17 18 21,000
URANUS 84.0 ″ 1782 30,875 15 59 14 0.25 ? 13 15,000
NEPTUNE 164.6 ″ 2792 37,205 21 103 17 0.17 ? 12 12,000
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SATELLITE OF THE EARTH.
Name. Sidereal period. d. h. m. Distance from Earth. Miles. Diameter Miles. Surface. Earth=1. Volume. Earth=1. Mass. Earth=1. Density. Earth=1. Axial Rotation. d. h. m. Force of gravity. Fall: Feet in 1 sec. Velocity in orbit. Miles per hour.
MOON 27 7 43 237,300 2,160 0.074 0.02034 0.0128 0.63 27 7 43 2.48 2,273
SATELLITES OF MARS.
Name. Discoverer. Mean distance from Mars. Miles. Sidereal period. d. h. m. Diameter. Miles. Maximum elongation. ″ Apparent star magnitude.
1. PHOBOS A. Hall, August 17, 1877. 6,000 0 7 39 7 12 11½
2. DEIMOS A. Hall, August 11, 1877. 15,000 1 6 18 6 32 13½
SATELLITES OF JUPITER.
Name. Discoverer. Mean distance from Jupiter. Miles. Sidereal period. d. h. m. Diameter. Miles. Apparent diameter of Jupiter seen from satellite. ° ″ Apparent star magnitude.
5. Barnard ....... 0 11 49 ? ..... ....
1. IO ............... 267,000 1 18 29 2,390 19 49 7
2. EUROPA Galileo, January 7-13, 1610. 425,000 3 13 13 2,120 12 25 7
3. GANYMEDE ............... 678,000 7 4 0 3,980 7 47 6
4. CALLISTO ............... 1,192,000 16 18 5 2,970 4 25 7
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SATELLITES OF SATURN.
Name. Discoverer. Mean distance from Saturn. Miles. Sidereal period. d. h. m. Diameter. Miles. Apparent diameter of Saturn seen from satellite. ° Apparent star magnitude.
1. MIMAS Sir W. Herschel, Sept, 17, 1789 115,000 0 22 37 1,000 33 17
2. ENCELADUS ″ ″ Aug. 28, 1789 147,000 1 8 53 ? 26 15
3. TETHYS J. D. Cassini, March, 1684 183,000 1 21 18 500 21 13
4. DIONE ″ ″ March, 1684 234,000 2 17 41 500 16 12
5. RHEA ″ ″ Dec. 23, 1672 327,000 4 12 25 1,200 12 10
6. TITAN Huygens, Mar. 25, 1653 758,000 15 22 41 3,300 5 8
7. HYPERION W. Bond & Lassell, Sept, 19, 1848 916,000 21 7 7 ? 4 17
8. IAPETUS J. D. Cassini, Oct. 25, 1671 2,221,000 79 7 53 1,800 2 9
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
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