Discoverer

Adam & Eve

Periapsis

147095000.0 $km$

Apoapsis

152100000.0 $km$

Semimajor axis

149598023.0 $km$ (1.001 $AU$)

Eccentricity

0.0167086

Inclination to ecliptic

5e-05°

Axial tilt

7.155° to cental body equator

Orbit direction

prograde

Synchronous

no

Period

365.256363 days

Synchronous

no

Obliquity

23.4393°

Period

1.0 days

Dimensions

6356.8 $\it km$ (polar) - 6378.1 $\it km$ (equatorial)

Mean radius

6371.0 $km$

Mass

5.97237e+24 $kg$ (1.0 Earth mass)

Mean density

5.514 $g/cm^{3}$

Surface

Gravity

9.8066 $m/s^{2}$

Geometric albedo (Vis)

0.367

Bond albedo

0.306

Temperature

184 K (pole) - 287.16 K (mean) - 330 K (equator)

Pressure

1.01325 bar at mean sea level

Atmosphere species

Name	State	Mole fraction	Location
N2	gas	78.084 %	atmosphere
O2	gas	20.946 %	atmosphere
Ar	gas	0.934 %	atmosphere
CO2	gas	0.0413 %	atmosphere
H2O	gas	1.0 %	atmosphere
O3	gas	0.001 %	stratosphere
H2O droplets	liquid		tropospheric clouds
H2O ice	solid		stratospheric clouds

Atmosphere comments

Contains also $Ne, He, CH_4, Kr$ and $H_2$ for less than 0.003%. Water abundance is highly variable: 0.001 - 5%

Surface species

Name	State	Mole fraction	Location
Fe	solid	32.1 %	surface, subsurface, crust, mantle
O	solid	30.1 %	surface, subsurface, crust, mantle
Si	solid	15.1 %	surface, subsurface, crust, mantle
Mg	solid	13.9 %	surface, subsurface, crust, mantle
S	solid	2.9 %	surface, subsurface, crust, mantle
Ni	solid	1.8 %	surface, subsurface, crust, mantle
Ca	solid	1.5 %	surface, subsurface, crust, mantle
Al	solid	1.4 %	surface, subsurface, crust, mantle
other	solid	1.2 %	surface, subsurface, crust, mantle

Surface comments

All types of minerals in the crust (continental - oceanic) mostly made of silica ($SiO_2$, 60.6-48.6%), alumina ($Al_2O_3$, 15.9-16.5%), lime ($CaO$, 6.4-12.3%), magnesia ($MgO$, 4.6-6.8%), iron oxide ($FeO_x$, 6.7-6.2%), sodium oxide ($Na_2O$, 3.1-2.6%), potassium oxide ($K_2O$, 1.8-0.4%), titanium dioxide ($TiO_2$, 0.7-1.4%), phosphorous pentoxide ($P_2O_5$, 0.13-0.3%), manganese oxide ($MnO$, 0.1-1.4%), water ($H_2O$, 1.4-1.1%), and carbon dioxide ($CO_2$, 1.2-1.4%).

• Wikipedia: Earth