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mercury

Mercury

  • Diameter: 4,879 km
  • Mass: 3.30 x 10^23 kg (5.5% Earth)
  • Moons: None
  • Orbit Distance: 57,909,227 km (0.39 AU)
  • Orbit Period: 88 days
  • Surface Temperature: -173 to 427°C
  • First Record: 14th century BC
Venus

Venus

  • Diameter: 12,104 km
  • Mass: 4.87 x 10^24 kg (81.5% Earth)
  • Moons: None
  • Orbit Distance: 108,209,475 km (0.73 AU)
  • Orbit Period: 225 days
  • Surface Temperature: 462 °C
  • First Record: 17th century BC
Mars

Mars

  • Equatorial Diameter: 6,792 km
  • Polar Diameter: 6,752 km
  • Mass: 6.42 x 10^23 kg (10.7% Earth)
  • Moons: 2 (Phobos & Deimos)
  • Orbit Distance: 227,943,824 km (1.52 AU)
  • Orbit Period: 687 days (1.9 years)
  • Surface Temperature: -153 to 20 °C
  • First Record: 2nd millennium BC
Jupiter

Jupiter

  • Equatorial Diameter: 142,984 km
  • Polar Diameter: 133,709 km
  • Mass: 1.90 × 10^27 kg (318 Earths)
  • Moons: 67 (Io, Europa, Ganymede & Callisto)
  • Rings: 4
  • Orbit Distance: 778,340,821 km (5.20 AU)
  • Orbit Period: 4,333 days (11.9 years)
  • Effective Temperature: -145°C
  • First Record: 7th or 8th century BC
Saturn

Saturn

  • Equatorial Diameter: 120,536 km
  • Polar Diameter: 108,728 km
  • Mass: 5.68 × 10^26 kg (95 Earths)
  • Moons: 62 (Titan, Enceladus, Iapetus & Rhea)
  • Rings: 30+ (7 Groups)
  • Orbit Distance: 1,426,666,422 km (9.54 AU)
  • Orbit Period: 10,756 days (29.5 years)
  • Effective Temperature: -178 °C
  • First Record: 8th century BC
Uranus

Uranus

  • Equatorial Diameter: 51,118 km
  • Polar Diameter: 49,946 km
  • Mass: 8.68 × 10^25 kg (15 Earths)
  • Moons: 27 (Miranda, Titania, Ariel, Umbriel & Oberon)
  • Rings: 13
  • Orbit Distance: 2,870,658,186 km (19.19 AU)
  • Orbit Period: 30,687 days (84.0 years)
  • Effective Temperature: -216 °C
  • Discovery Date: March 13th 1781
Neptune

Neptune

  • Equatorial Diameter: 49,528 km
  • Polar Diameter: 48,682 km
  • Mass: 1.02 × 10^26 kg (17 Earths)
  • Moons: 14 (Triton)
  • Rings: 5
  • Orbit Distance: 4,498,396,441 km (30.10 AU)
  • Orbit Period: 60,190 days (164.8 years)
  • Effective Temperature: -218 °C
  • Discovery Date: September 23rd 1846