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 Earth
    Temperature
    (°K
    Range or Average
    °C
    °F)
    Number
    of Moons
    Mercury 0.39 AU
    36 million miles
    57.9 million km
    87.96 Earth days 58.7 Earth days 3.3 x 1023
    (5.5% Earth)
    3,031 miles
    4,878 km
    5-13 arc seconds 100-700 K
    mean=452 K
    -173 to 427°C (-279.4 to 800.6°F)
    0
    Venus 0.723 AU
    67.2 million miles
    108.2 million km
    224.68 Earth days 243 Earth days
    (retrograde)
    4.87 x 1024
    (81.5% Earth)
    7,521 miles
    12,104 km
    10-64 arc seconds 726 K
    462 °C (863.6 °F)
    0
    Earth 1 AU
    93 million miles
    149.6 million km
    365.26 days 24 hours 5.98 x 1024 7,926 miles
    12,756 km
    Not Applicable 260-310 K
    -88 to 58°C (-126.4 to 136.4°F)
    1
    Mars 1.524 AU
    141.6 million miles
    227.9 million km
    686.98 Earth days 24.6 Earth hours
    =1.026 Earth days
    6.42 x 1023
    (10.7% Earth)
    4,222 miles
    6,787 km
    4-25 arc seconds 150-310 K
    -153 to 20 °C (-243.4 to 68 °F)
    2
    Jupiter 5.203 AU
    483.6 million miles
    778.3 million km
    11.862 Earth years 9.84 Earth hours 1.90 x 1027
    (318 Earths)
    88,729 miles
    142,796 km
    31-48 arc seconds 120 K
    (cloud tops)
    -148 °C (-234.4 °F)
    95
    Saturn 9.539 AU
    886.7 million miles
    1,427.0 million km
    29.456 Earth years 10.2 Earth hours 5.69 x 1026
    (95 Earths)
    74,600 miles
    120,660 km
    15-21 arc seconds
    excluding rings
    88 K
    -178 °C (-288.4 °F)
    274
    Uranus 19.18 AU
    1,784.0 million miles
    2,871.0 million km
    84.07 Earth years 17.9 Earth hours
    (retrograde)
    8.68 x 1025
    (15 Earths)
    32,600 miles
    51,118 km
    3-4 arc seconds 59 K
    -216 °C (-356.8 °F)
    28
    Neptune 30.06 AU
    2,794.4 million miles
    4,497.1 million km
    164.81 Earth years 19.1 Earth hours 1.02 x 1026
    (17 Earths)
    30,200 miles
    48,600 km
    2.5 arc seconds 48 K
    -214 °C (-353.2 °F)
    16
    Pluto (a dwarf planet) 39.53 AU
    3,674.5 million miles
    5,913 million km
    247.7 Earth years 6.39 Earth days
    (retrograde)
    1.29 x 1022
    (0.17 Moons)
    1,413 miles
    2,274 km
    0.04 arc seconds 37 K
    -229°C (-380.2 °F)
    5
    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 Earth
    Temperature
    (°K
    Range or Average
    °C
    °F)
    Number of Moons