# PLANET DATA REFERENCE

## MERCURY

Mass **10 ^{24}kg = 0.3302**

Volume** 10^{10}km^{3}= 6.083**

Mean Radius** km = 2,440**

Surface gravity (g)** ms ^{-2} = 3.7**

Number of Moons** = 0**

Distance from Sun (semi-major axis)** 10 ^{6}km = 57.8**

Min distance from sun (perihelion) **10 ^{6}km = 46.0**

Max distance from sun (aphelion)** 10 ^{6}km = 69.8**

Eccentricity** = 0.21**

Inclination of rotation to orbit = **0.01°**

Length of “Day”(Rotation period) **hrs = 4,223**

Length of “Year” (Orbital period)** days = 87.969**

Discoverer = Unknown

Atmosphere Pressure **bar**** = 10 ^{-15}**

Atmosphere Composition** = O _{2}, Na, H_{2}**

Average Temperature **°C**** = 167**

## VENUS

Mass **10 ^{24}kg = 4.8685**

Volume** 10^{10}km^{3}= 92.843**

Mean Radius** km = 6,052**

Surface gravity (g)** ms ^{-2} = 8.9**

Number of Moons** = 0**

Distance from Sun (semi-major axis)** 10 ^{6}km = 108.2**

Min distance from sun (perihelion) **10 ^{6}km = 107.5**

Max distance from sun (aphelion)** 10 ^{6}km = 108.9**

Eccentricity** = 0.0067**

Inclination of rotation to orbit = **177.36°**

Length of “Day”(Rotation period) **hrs = 2,802**

Length of “Year” (Orbital period)** days = 224.701**

Discoverer = Unknown

Atmosphere Pressure **bar**** = 92**

Atmosphere Composition** = CO _{2}, N_{2}**

Average Temperature **°C**** = 464**

## EARTH

Mass **10 ^{24}kg = 5.974**

Volume** 10^{10}km^{3}= 108.321**

Mean Radius** km = 6,371**

Surface gravity (g)** ms ^{-2} = 9.8**

Number of Moons** = 1**

Distance from Sun (semi-major axis)** 10 ^{6}km = 149.6**

Min distance from sun (perihelion) **10 ^{6}km = 147.1**

Max distance from sun (aphelion)** 10 ^{6}km = 152.1**

Eccentricity** = 0.017**

Inclination of rotation to orbit = **23.45°**

Length of “Day”(Rotation period) **hrs = 24.0**

Length of “Year” (Orbital period)** days = 365.256**

Discoverer = Erm…

Atmosphere Pressure **bar**** = 1**

Atmosphere Composition** = N _{22}**

Average Temperature **°C**** = 15**

# MARS

Mass **10 ^{24}kg = 0.6419**

Volume** 10^{10}km^{3}= 16.318**

Mean Radius** km = 3,370**

Surface gravity (g)** ms ^{-2} = 3.7**

Number of Moons** = 2**

Distance from Sun (semi-major axis)** 10 ^{6}km = 227.9**

Min distance from sun (perihelion) **10 ^{6}km = 206.6**

Max distance from sun (aphelion)** 10 ^{6}km = 249.2**

Eccentricity** = 0.094**

Inclination of rotation to orbit = **25.19°**

Length of “Day”(Rotation period) **hrs = 24.7**

Length of “Year” (Orbital period)** days = 686.980**

Discoverer = Unknown

Atmosphere Pressure **bar**** = 0.006**

Atmosphere Composition** = CO _{2}, N_{2}**

Average Temperature **°C**** = -63**

## JUPITER

Mass **10 ^{24}kg = 1,898.6**

Volume** 10^{10}km^{3}= 143,128**

Mean Radius** km = 69,911**

Surface gravity (g)** ms ^{-2} = 24.8**

Number of Moons** = 63**

Distance from Sun (semi-major axis)** 10 ^{6}km = 778.6**

Min distance from sun (perihelion) **10 ^{6}km = 740.5**

Max distance from sun (aphelion)** 10 ^{6}km = 816.6**

Eccentricity** = 0.049**

Inclination of rotation to orbit = **3.13°**

Length of “Day”(Rotation period) **hrs = 9.9**

Length of “Year” (Orbital period)** days = 4,332.589**

Discoverer = Unknown

Atmosphere Pressure **bar**** = >>1000**

Atmosphere Composition** = H _{2}, He**

Average Temperature **°C**** = -108**

## SATURN

Mass **10 ^{24}kg = 468.46**

Volume** 10^{10}km^{3}= 82,713**

Mean Radius** km = 58,232**

Surface gravity (g)** ms ^{-2} = 10.4**

Number of Moons** = 33**

Distance from Sun (semi-major axis)** 10 ^{6}km = 1,443.5**

Min distance from sun (perihelion) **10 ^{6}km = 1,352.6**

Max distance from sun (aphelion)** 10 ^{6}km = 1,514.5**

Eccentricity** = 0.057**

Inclination of rotation to orbit = **26.73°**

Length of “Day”(Rotation period) **hrs = 10.7**

Length of “Year” (Orbital period)** days = 10,759.22**

Discoverer = Unknown

Atmosphere Pressure **bar**** = >>1000**

Atmosphere Composition** = H _{2}, He**

Average Temperature **°C**** = -139**