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venussy

TermDefinition
Galileo discovery and impact Galileo discovered that Venus shows phases, similar to Earth's Moon, a finding that provided key evidence for the heliocentric model
Venus proximity 24 million miles (38.6 million km) closest 160 million miles (257) million km) farthest
moons 0
Density 5.3 g/cm^3
Surface basalt and craters filled w/ lava
Rotation retrograde, spins in the opposite direction of earth
Length of day / year 243 earth days = 1 day on venus 225 earth days = 1 yr on venus
Atmosphere Mainly CO2 w/ some nitrogen
Radar uses radio waves to determine the distance, direction, and radial velocity of objects relative to the site. I
Spacecraft Magellan Launch: May 4, 1989 Venus arrival: August 10, 1990 Start of radar mapping: September 15, 1990
Naming of features All named after women in history/mythology
Named craters Mead: Largest crater on Venus named after anthropologist Margaret Mead.
Transit When Venus passes directly between the Sun and Earth, appearing as a small, dark disk moving across the face of the Sun.
Sunrise rises in the west
Sunset sets in the east
Created by: user-1999960
 



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