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Earth is the only planet in the solar system which definately has life on it. Here is the Earth statics :
| Earth Statistics |
| Mass (kg)
| 5.976e+24 |
| Mass (Earth = 1)
| 1.0000e+00 |
| Equatorial radius (km)
| 6,378.14 |
| Equatorial radius (Earth = 1)
| 1.0000e+00 |
| Mean density (gm/cm^3)
| 5.515 |
| Mean distance from the Sun (km)
| 149,600,000 |
| Mean distance from the Sun (Earth = 1)
| 1.0000 |
| Rotational period (days)
| 0.99727 |
| Rotational period (hours)
| 23.9345 |
| Orbital period (days)
| 365.256 |
| Mean orbital velocity (km/sec)
| 29.79 |
| Orbital eccentricity
| 0.0167 |
| Tilt of axis (degrees)
| 23.45 |
| Orbital inclination (degrees)
| 0.000 |
| Equatorial escape velocity (km/sec)
| 11.18 |
| Equatorial surface gravity (m/sec^2)
| 9.78 |
| Visual geometric albedo
| 0.37 |
| Mean surface temperature
| 15°C |
| Atmospheric pressure (bars)
| 1.013 |
Atmospheric composition
Nitrogen
Oxygen
Other
77%
21%
2% | |
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