Characteristics of the Planets

Characteristic

Mercury

Venus

Earth

Mars

Jupiter

Saturn

Uranus

Neptune

Pluto*

Equatorial radius (Earth radii†)	0.3825	0.9488	1	0.5325	11.21	9.449	4.007	3.883	0.1874
Equatorial inclination (degrees)	0.01	2.64	23.5	25.2	3.13	26.7	82.2	28.3	57.4
Mass (Earth masses‡)	0.0553	0.8150	1	0.1074	317.8	95.16	14.54	17.15	0.0023
Average density (g/cm3)	5.4	5.2	5.5	3.9	1.3	0.69	1.3	1.6	1.8
Rotational period (days)	58.6	-240	1	1.03	0.414	0.444	-0.718	0.671	-6.4
Orbital period (years)	0.2408	0.6152	1	1.881	11.86	29.46	84.01	164.8	247.9
Average distance from the Sun (AUs)	0.3871	0.7233	1	1.524	5.203	9.59	19.10	30	39.30
Orbital eccentricity (ratio)	0.206	0.00674	0.0167	0.0935	0.0489	0.0576	0.0497	0.00995	0.248
Orbital inclination (degrees)	7	3.39	0.0003	1.85	1.30	2.49	0.772	1.77	17.2
Moons (number)	0	0	1	2	63	47	27	10	3
*Reclassified as a dwarf planet by the International Astronomical Union in 2006 †Planet's radius expressed as a multiple of Earth's radius (6,378 km) ‡Planet's mass expressed as a multiple of Earth's mass (5.974×1024 kg)