The Planets in Our Solar System
Planet (or Dwarf Planet)Distance from the Sun
(Astronomical Units
miles
km)Period of Revolution Around the Sun
(1 planetary year)Period of Rotation
(1 planetary day)Mass
(kg)Diameter
(miles
km)Apparent size
from EarthTemperature
(K
Range or Average)Number of Moons
Mercury0.39 AU, 36 million miles
57.9 million km87.96 Earth days58.7 Earth days3.3 x 10233,031 miles
4,878 km5-13 arc seconds100-700 K
mean=452 K0
Venus0.723 AU
67.2 million miles
108.2 million km224.68 Earth days243 Earth days4.87 x 10247,521 miles
12,104 km10-64 arc seconds726 K0
Earth1 AU
93 million miles
149.6 million km365.26 days24 hours5.98 x 10247,926 miles
12,756 kmNot Applicable260-310 K1
Mars1.524 AU
141.6 million miles
227.9 million km686.98 Earth days24.6 Earth hours
=1.026 Earth days6.42 x 10234,222 miles
6,787 km4-25 arc seconds150-310 K2
Jupiter5.203 AU
483.6 million miles
778.3 million km11.862 Earth years9.84 Earth hours1.90 x 102788,729 miles
142,796 km31-48 arc seconds120 K
(cloud tops)67 (18 named plus many smaller ones)
Saturn9.539 AU
886.7 million miles
1,427.0 million km29.456 Earth years10.2 Earth hours5.69 x 102674,600 miles
120,660 km15-21 arc seconds
excluding rings88 K62 (30 unnamed)
Uranus19.18 AU
1,784.0 million miles
2,871.0 million km84.07 Earth years17.9 Earth hours8.68 x 102532,600 miles
51,118 km3-4 arc seconds59 K27 (6 unnamed)
Neptune30.06 AU
2,794.4 million miles
4,497.1 million km164.81 Earth years19.1 Earth hours1.02 x 102630,200 miles
48,600 km2.5 arc seconds48 K13
Pluto (a dwarf planet)39.53 AU
3,674.5 million miles
5,913 million km247.7 years6.39 Earth days1.29 x 10221,413 miles
2,274 km0.04 arc seconds37 K4
Planet (or Dwarf Planet)Distance from the Sun
(Astronomical Units
miles
km)Period of Revolution Around the Sun
(1 planetary year)Period of Rotation
(1 planetary day)Mass
(kg)Diameter
(miles
km)Apparent size
from EarthTemperature
(K
Range or Average)Number of Moons
Explanation:
