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Tuesday, October 7, 2008

ABOUT SOLAR SYSTEM


The Solar System is the Sun and all the objects in orbit around it. The objects orbiting the Sun are the 8 planets - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, three dwarf planets (Pluto, Ceres and Eris), the planets’ 170 moons, and billions of smaller bodies, including asteroids, Kuiper belt objects, comets, meteoroids, and interplanetary dust.
SUN STATISTIC
Mass (kg)= 1.989e+30
Mass (Earth = 1)= 332,830
Equatorial radius (km) =695,000
Equatorial radius (Earth = 1)= 108.97
Mean density (gm/cm^3)= 1.410
Rotational period (days)= 25-36*
Escape velocity (km/sec)= 618.02
Luminosity (ergs/sec)= 3.827e33
Magnitude (Vo)= -26.8
Mean surface temperature= 6,000°C
Age (billion years)= 4.5


Principal chemistry
Hydrogen(92.1%), Helium (7.8%), Oxygen(0.061%), Carbon(0.030), Nitrogen(0.0084%), Neon(0.0076%), Iron(0.0037%), Silicon(0.0031%), Magnesium(0.0024%), Sulfur(0.0015%) and All others(0.0015%)

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