Tuesday, February 13, 2007

THE SUN WITH 8 ROTATING PLANETS.

This is my first attempt at "Amateur" Astromony, George E.Gebhardt. Click on any picture to ENLARGE, than go back to arrow (upper left) to return to show. 8 Planets rotate around the Sun. They must be massive enough that Gravity keeps them round. The SUN
shown here has a diameter of 840,000 miles. JUPITER is 483.7 million mlles from the Sun. Diameter 88,846 miles. Gravity 100 Earth lbs = 280 lbs on Jupiter. It is the largest planet, and consists mostly of hydrogen and helium.
SATURN 885.9 million miles from Sun. Diam 74,896 miles Rotation period = 10.7 hrs. Gravity 100 Earth lbs = 108 lbs on Saturn.
URANUS 1.8 billion miles from Sun. Diameter 31,764 miles. Gravity 100 Earth lbs = 86 lbs on Uranus. Rotation period = 17.2 hours.
NEPTUNE 2.8 billion miles from Sun. Diam 30,776 miles. Gravity 100 Earth lbs = 110 lbs on Nepturne. Rotation period = 16.1 hrs. EARTH 93 million miles from Sun. Diam. 7,926 miles. Rotation period 23.9 hours. Orbital period 365.2 days. Only known life. Rich in liquid water.
VENUS 67.2 mill miles from Sun Diam 7,521 miles. Gravity 100 Earth lbs = 91 lbs on Venus. Rotation period 243 days. Orbital period 224 Earth days. MARS 141.6 million miles from Sun. Diam 4,222 miles. Gravity 100 Earth lbs. = 38 lbs. on Mars. Rotation period 24.6 hours. Orbital period 686.9 days. MERCURY 35.9 mill miles from Sun. Diam 3,032 miles, Gravity 100 Earth lbs = 38 lbs on Mercury. Rotation period 58.6 Earth days. Orbital period 87.9 days.

CERES (dwarf planet) is an Asteroid, 602 miles in diameter. Rotation period 9.1 hours.
PLUTO (dwarf planet) 1,430 miles in diameter. Rotation period 6.4 Earth days.
ERIS (dwarf planet) 1,491 miles in diameter. Rotation period unknown.

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