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Planet Neptune

How big is Planet Neptune?



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Neptune is the fourth largest planet in the Solar System and 3.833 times larger than Earth.

  • Equatorial radius 24,764 km (15,388 miles)
  • Equatorial diameter of about 30,700 mi (49,400 km)
  • Polar radius 24,341 (15.125 miles)

Distance from the sun is 4.5 billion km it is -216C and the length of a year is 164 years 2888.54 days. Also the length of a day is 16 hours and 3 minutes long.