Known Space   --   Sol   --  

Earth


The Earth, garden planet and homeworld to Humanity. It is just the right distance from the Sun for water to be liquid (not steam or ice). This blue-white cloud-marbled bowling ball is teeming with life, inspite of severe ecological damage inflicted by Man in recent times.


Orbital Distance:   0.983 AU - 1.017 AU (average 1.000 AU)
Eccentricity:       0.017
Local Year:         365.256 days
Orbital Velocity:   29.79 km/s (average)
Inclination:        0°
Local Day:          1 day (23h 56m 04s)
Axial Tilt:         23.45°

Diameter:           12,756 km
Composition:        Nickel-iron, silicates
Density:            5.52 g/cm3
Mass:               5.976 x 1018 tonnes (1.000 earths)
Gravity:            1.000 G
Escape Velocity:    11.18 km/s
Area:               510.066 million km2
Surface Material:   Granitic soil and water
Atmosphere:         Nitrogen, oxygen, and water
Pressure:           1 atm
Albedo:             0.36
Temperature:        +22°C

 


Satellite     Distance     Month       Day   Diameter
Luna        384,400 km   27.33 d   27.33 d      0.272

 

Map of Earth

 

FAQ - Astronomical Glossary


Copyright © 1996 Trisen Games