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Venus is the second planet from the Sun.It is a terrestrial planet and is the closest in mass and size to its orbital neighbour Earth.Venus has by far the densest atmosphere of the terrestrial planets, composed mostly of carbon dioxide with a thick, global sulfuric acid cloud cover.
The planet's period of retrograde motion is 20 days on either side of the inferior conjunction. In fact, through a telescope Venus at greatest elongation appears less than half full due to Schröter's effect first noticed in 1793 and shown in 1996 as due to its thick atmosphere. [15] [16]
Several "pancake volcanoes" called Carmenta Farra. A pancake dome is an unusual type of lava dome found on the planet Venus.They are widely scattered on that planet and often form groups or clusters, though with smaller numbers of pancake domes in each group than is typical for the more common shield volcanos.
The following outline is provided as an overview of and topical guide to Venus: . Venus – second planet from the Sun, orbiting it every 224.7 Earth days. It has the longest rotation period (243 days) of any planet in the Solar System and rotates in the opposite direction to most other planets.
Artificial object Image Country Landing date Landing mass Coordinates Venera 3: Soviet Academy of Sciences Soviet Union March 1, 1966 377 kg (831 lb) [a 1]: Venera 4: Soviet Academy of Sciences Soviet Union: October 18, 1967 : 377 kg (831 lb) : Venera 5: Soviet Academy of Sciences Soviet Union: May 16, 1969 : 410 kg (900 lb) : Venera 6: Soviet Academy of Sciences Soviet Union: May 17, 1969 : ...
It is sometimes called Earth's "sister planet" due to their similar size, gravity, and bulk composition (Venus is both the closest planet to Earth and the planet closest in size to Earth). The surface of Venus is covered by a dense atmosphere and presents clear evidence of former violent volcanic activity.
In 1962, Mariner 2, the first successful mission to Venus, measured the planet's temperature for the first time, and found it to be "about 500 degrees Celsius (900 degrees Fahrenheit)." [ 14 ] Since then, increasingly clear evidence from various space probes showed Venus has an extreme climate, with a greenhouse effect generating a constant ...
Maat Mons is a massive shield volcano on the planet Venus and the planet's second-highest mountain and highest volcano. It rises 8 kilometres (5.0 mi) above the mean planetary radius at 0°30′N 194°36′E / 0.5°N 194.6°E / 0.5; 194.6 , and nearly 5 km above the surrounding plains