Tuesday, July 31, 2007


Pluto Diameter 3,040 Kilometer
Moons 1
Avg.Distance to Sun 5,865.5 million KM
Time to Orbit the Sun 248 Years
  1. This Planet is the farthest, the smallest, the darkest, the coldest and arguably the strangest.
  2. It follows the most elongated and tilted orbit in the solar system.
  3. Its moon, Charon, is nearly half its size - appears like a bi-planet.
  4. NASA used a new infra-red telescope, has learned that Pluto is shrouded in frozen nitrogen- not methane as once thought. Nitrogen makes 78% of the air.

Neptune Diameter 49,000 Kilometer
Moons 8
Avg.Distance to Sun 4,497 million KM
Time to Orbit the Sun 165 Years
  1. It is denser & little smaller than Uranus.
  2. Its Atmosphere appear blue, with quickly changing white clouds often suspended high above an apparent surface.
  3. Atmosphere constituents are mostly hydrocarbon compounds.
  4. It Emits about 2.3 times more energy than it receives from the sun and the Aurora phenomenon was noticed by Voyager II.

Uranus Diameter 52,096 Kilometer
Moons 17
Avg.Distance to Sun 2,852.8 million KM
Time to Orbit the Sun 84 Years
  1. Waterly Uranus is the only planet that lies on its side.
  2. One pole, than the other, faces the Sun as it orbits.
  3. Voyager-I found nine dark, compact rings around the planet and a corkscrew-shaped magnetic field that stretches millions of kilometers.

Mars Diameter 6,755.2 Kilometer
Moons 2
Avg.Distance to Sun 225.6 million KM
Time to Orbit the Sun 687 Days
  1. The Viking probes failed to Beneath its thin atmosphere.
  2. Mars is barren, covered with pink soil and boulders.
  3. Long ago it was active, the surface is marked with dormant volcanoes and deep chasms where water once freely flowed.

Venus Diameter 12,032 Kilometer
Moons None
Avg.Distance to Sun 107.52 million KM
Time to Orbit the Sun 225 Days
  1. Earth's twin in size and mass, sparingly hot Venus is perpetually veiled behind reflective sulfuric-acid clouds.
  2. Probes and radar mapping have pierced the clouds and carbon-dioxide environment to reveal flat, rocky plains & signs of volcanic activity.

Mercury Diameter 4,849.6 Kilometer
Moons None
Avg.Distance to Sun 57.6 million KM
Time to Orbit the Sun 88 Days
  1. Tiny Mercury, slightly larger than Earth's moon.
  2. Races along its elliptical orbital 1,76,000 kilometer per hour.
  3. A speed that keeps it from being drawn into the Sun's gravity field.
  4. The crated planet has no atmosphere, days are scorching hot and nights, frigid.

Earth Diameter 12,732.2 Kilometer
Moons 1
Avg.Distance to Sun 148.8 million KM
Time to Orbit the Sun 365 Days
  1. Uniquely moderate temperature and the presence of oxygen and copious water maker Earth the only planet in the solar system to support life.

Jupiter Diameter 1,41,968 Kilometer
Moons 16
Avg.Distance to Sun 772.8 million KM
Time to Orbit the Sun 11.9 Years
  1. Two Pioneer space probes photographed the Great Red Spot on the Solar system's largest planet.
  2. Voyagers I and II later showed it is an enormous eddy in the turbulent cloud cover. Earth the only planet in the solar system to support life.
  3. They also spotted dusty rings, three new moons and volcanoes on the Moon.

Saturn Diameter 1,19,296 Kilometer
Moons 20 or more
Avg.Distance to Sun 1,417.6 million KM
Time to Orbit the Sun 29.5 Years
  1. Voyager I found that the celebrated rings of the golden giant Saturn are composed of thousands of rippling, spiraling bands just 100 feets thick.
  2. The moon Titan has a nitrogen atmosphere and hydrocarbons.

Sun Diameter 13,84,000 Kilometer
Statellites 9 Planets
Age 4.5 billion years
  1. A rather ordinary, middle age star, the gaseous sun may reach a temperature of 27-millon degrees Celsius at its core.
  2. Its 11 years cycle is now approaching a solar maximum, a period marked by frequent sunspots and flares.
  3. On Earth, some radio waves will be disturbed and the amazing sky streamers called Northern Lights will appear.

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