VENUS

Venus, the jewel of the sky, was once know by ancient astronomers as the morning star and evening star. Early astronomers once thought Venus to be two separate bodies. Venus, which is named after the Roman goddess of love and beauty, is veiled by thick swirling cloud cover. Astronomers refer to Venus as Earth's sister planet. Both are similar in size, mass, density and volume but Venus is very different from the Earth. It has no oceans and is surrounded by a heavy atmosphere composed mainly of carbon dioxide with virtually no water vapor. Its clouds are composed of sulfuric acid droplets.

Venus has a surface temperature of about 482° C (900° F). This high temperature makes it impossible for us to be on the surface and makes Venus hotter than Mercury even though it is farther from the Sun.

Venus rotates very slowly making its day longer than its year. A Venusian day is 243 Earth days and is longer than its year of 225 days. This is hard to understand but if we think about it, we are the ones who invented the day and the year. If there were people on Venus, they might think of their calendar backwards from us. Another strange thing about Venus for us is that it rotates from east to west, the opposite of Earth. This makes the SunOddly, Venus rotates from east to west. To an observer on Venus, the Sun rise in the west and set in the east.

 Venus Statistics

 Mean distance from the Sun (km) ................. 108,200,000

 Equatorial surface gravity (m/sec^2) ................... 8.87

 Mean surface temperature .............................. 482°C

 Atmospheric composition

  • Carbon dioxide ...................................... 96%
  • Nitrogen ............................................ 3+%
  • Trace amounts of: Sulfur dioxide, water vapor, carbon monoxide, argon, helium, neon, hydrogen chloride, and hydrogen fluoride.

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