Our Solar System

The Sun Diameter: 1,390,000 km Fun Facts: It is the largest object in the solar system. Eight planets orbit the sun.

Mercury Diameter: 3,031 miles Number of Moons: 0 Fun Facts: Closest planet to the sun, 8th largest, temperature variations are the most extreme Distance from the sun: 36,000,000 miles km

Mercury Orbital Period (Year): 88 days Rotational Period (Day): 59 days Average Temperature: -297°F to 800°F Gravity Compared to Earth: 0.38km

Venus Diameter: 7,521 miles Number of Moons: 0 Fun Facts: Distance from the sun: 67,000,000 miles

Venus Orbital Period (Year): 224 days Rotational Period (Day): 243 days Average Temperature: 896°F Gravity Compared to Earth: 0.9km

Earth Diameter: 7,926 miles Number of Moons: 1 Fun Facts: Distance from the sun: 92,960,000 miles

Earth Orbital Period (Year): 365.25 days Rotational Period (Day): 23 hours, 56 minutes Average Temperature: 57°F Gravity Compared to Earth: 1km

Mars Diameter: 4,222 miles Number of Moons: 2 Fun Facts: Distance from the sun: 141,700,000 miles

Mars Orbital Period (Year): 365.25 days Rotational Period (Day): 23 hours, 56 minutes Average Temperature: 57°F Gravity Compared to Earth: 1km

Jupiter Diameter: 88,846 miles Number of Moons: 63 Fun Facts: Distance from the sun: 483,500,000 miles

Jupiter Orbital Period (Year): 11.86 years Rotational Period (Day): 9 hours, 55 minutes Average Temperature: -202°F Gravity Compared to Earth: 2.64

Saturn Diameter: 74,900 miles Number of Moons: 61 Fun Facts: Distance from the sun: 888,750,000 miles

Saturn Orbital Period (Year): 29 years Rotational Period (Day): 10 hours, 39 minutes Average Temperature: -202°F Gravity Compared to Earth: 1.16

Uranus Diameter: 31,763 miles Number of Moons: 27 Fun Facts: Distance from the sun: 1,740,200,000 miles

Uranus Orbital Period (Year): 84 years Rotational Period (Day): 17 hours, 14 minutes Average Temperature: -328°F Gravity Compared to Earth: 1.11

Neptune Diameter: 30,779 miles Number of Moons: 13 Fun Facts: Distance from the sun: 2,797,770,000 miles

Neptune Orbital Period (Year): 164.8 years Rotational Period (Day): 16 hours, 7 minutes Average Temperature: -328°F Gravity Compared to Earth: 1.21

Dwarf (Minor) Planets

Ceres Diameter: 950 km Number of Moons: 0 Distance from the sun: 257,031,000 km

Ceres Orbital Period (Year): 4 years, 220 days Rotational Period (Day): 9 hours, 5 minutes Average Temperature: -158°F

Pluto Diameter: 1,413 km Number of Moons: 3 Distance from the sun: 2,761,060,000 to 4,690,700,000 km

Pluto Orbital Period (Year): 248 years Rotational Period (Day): 6 days, 9 hours Average Temperature: -373°F

Haumea Diameter: 1,960 x 1,518 x 996 km Number of Moons: 2 Distance from the sun: 3,268,000,000 to 4,789,000,000 km

Haumea Orbital Period (Year): 285 years Rotational Period (Day): 4 hours Average Temperature: -400°F

Makemake Diameter: Between 1300 to 1900 km Number of Moons: 0 Distance from the sun: 3,579,000,000 to 4,933,000,000 km

Makemake Orbital Period (Year): 309 years Rotational Period (Day): Unknown Average Temperature: -405°F

Eris Diameter: 1,489 km Number of Moons: 1 Distance from the sun: 3,518,000,000 to 9,088,000,000 km

Eris Orbital Period (Year): 557 years Rotational Period (Day): 8 hours Average Temperature: -386 to -414 °F