Venus
Sin’Kira Khan
Reina Medina
Period 2
Sister planet
• Astronomers refer to Venus as Earth's
sister planet
• Both are similar in size, mass, density
and volume
• formed about the same time and
condensed out of the same nebula
• YET….
continued
• Venus is very different from the Earth
• has no oceans
• surrounded by a heavy atmosphere
composed mainly of carbon dioxide with
virtually no water vapor
• clouds are composed of sulfuric acid droplets
• At the surface, the atmospheric pressure is
92 times that of the Earth's at sea-level
Temperature
• Venus is scorched with a surface
temperature of about 482° C (900° F)
• It is the hottest planet in our solar
system
• high temperature is primarily due to a
runaway greenhouse effect caused by
the heavy atmosphere of carbon dioxide
Continued
• Sunlight passes through the atmosphere to
heat the surface of the planet
• Heat is radiated out, but is trapped by the
dense atmosphere and not allowed to escape
into space
• Scientists believe Venus was largely formed
by volcanic processes
Orbit cycle
• A Venusian day is 243 Earth days and is
longer than its year of 225 day
• rotates from east to west
• To an observer on Venus, the Sun would rise
in the west and set in the east
• Because Venus is only slightly tilted on its
axis, it has no seasonal variation
From earth….
• inferior planet, it shows phases when viewed
with a telescope from the perspective of
Earth.
• Brightest planet from earth
• Galileo's observation of this phenomenon
was important evidence in favor of
Copernicus's heliocentric theory of the solar
system
Atmosphere
• There are strong (350 kph) winds at the cloud
tops but winds at the surface are very slow,
no more than a few kilometers per hour.
• Clouds are so dense than you can never see
the earth or the sun from the planets surface
• There are no craters on the surface smaller
than 1.25 miles
Video
continued
• Atmosphere is so dense the smaller
asteroids are crushed before reaching
the surface
• No detectable magnetic field
• No orbiting moons around
Works Cited
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"Venus L Venus Facts, Pictures and Information." The Nine Planets Solar
System Tour. Web.
03 Mar. 2011. <http://nineplanets.org/venus.html>.
"Venus Introduction." Views of the Solar System. Web. 03 Mar. 2011.
<http://www.solarviews.com/eng/venus.htm>.
"Planet Venus." Space Projects - Space Information - Space Shop. Web. 03
Mar. 2011. <http://www.aerospaceguide.net/planet/planetvenus.html>.
"Planet Venus - Overview and Pictures." The Solar Space Station - Facts,
Information and Pictures about the Solar System, Planets Asteroids Meteors
Comets Etc. Web. 03 Mar. 2011.
<http://www.solarspace.co.uk/Venus/venus.php>.
"YouTube - Planet Venus: The Deadliest Planet, Venus Surface &
Atmosphere [Naitional Geographic Channel, HD]." YouTube - Broadcast
Yourself. Web. 07 Mar. 2011.
<http://www.youtube.com/watch?v=HqFVxWfVtoo>.