General Knowledge(Mercury,Venus and Mars)

In this post I will give important data regarding planets:-Mercury, Venus and Mars.

Planet:- Mercury

Diameter:- 4850 km, 1/3 Earth's

Volume:- 1/16 that of Earth's

Density:- 5.4(approx. same as Earth)

Mass:- 1/18 that of Earth

Gravity:- about 1/3 that of Earth

Atmosphere:- none

Temperature:- day 400 C, night -220 C

Highest Peak:- 2.5 km above lowest land

Escape Velocity:- 4.2 km/sec

Turns on axis in:- 59 days

Distance from Sun:- 58,000,000 km

Orbits Sun in:- 87.97 days

 Closest to Earth at:- 45,000,000 km

Moons:- none

Planet:- Venus

Diameter:- 12,140 km, similar to Earth's

Volume:- about 9/10 that of Earth

Density:- 5.2 much as that of Earth

Mass:- 4/5 that of Earth

Gravity:- nearly 9/10 that of Earth

Atmosphere:- mainly carbon dioxide

Temperature:- up to 500 C

Highest Peak:- Unknown

Escape Velocity;- 10.3 km/sec

Turns on axis in:- 243 days

Distance from Sun:- 108,000,000 km

Orbits Sun in:- 224.7 days at 35 km/hr

Closest to Earth:- 42,000,000 km

Moons:- none

Planet:- Mars

Diameter:- 6790 km, about half Earth's

Volume:- about 1/7 that of Earth

Density:- 3.95, about 2/3 that of Earth

Mass:- about 1/9 that of Earth

Gravity:- more than 1/3 that of Earth

Atmosphere:- thin, mainly carbon dioxide

Temperature:- below -180 C to just above 0 C

Highest Peak:- Nix Olympica, 30 km high

Escape velocity:- 5.0 km/sec

Turns on axis in:- 24 hours 37 mins

Distance from Sun:- 228,000,000 km

Orbits Sun in:- 687 days

Moons:- 2(Phobos and Deimos)

Useful Data-Earth

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