Neptune

Neptune

1. Satellites (14)

   • Tritón
     • Rotates in the Opposite Direction of Planet Rotation (unique in Solar System)
     • With Tectonic Activity (Geysers)
   • Nereida
   • Talasa
   • Despina
   • Galatea
   • Larisa
   • Proteo
   • Náyade
   • Halimede
   • Sao
   • Laomedeia
   • Psámate
   • Neso

2. Characteristics

   • Planet Surface
     • Rocky Core of Earth Size
     • Mantle made by a Icy Ocean of Water, Methane and Ammonia
   • Dense and Windy Atmosphere (with winds of 2400 Km/h. 3 times more powerful than Jupiter's and 9 times of Earth)
     • Helium 25%
     • Hydrogen 74%
     • Methane 1%
   • Temperature (-214 °C)
   • Diameter (49,528 km)
   • Magnetic Field 27 times more powerful than Earth
   • Gravity Similar to Earth

3. The Great Dark Spot with de Earth Size (Discovered in 1989)

   • Possibly it was a Pit o Depression into Planet Atmosfere
   • White Clouds Similar to Earth were Generated
   • Disappeared in 1994

4. General Data

   • Distance from Earth 4,350 Million Kms
   • Last Planet of the Solar System
   • Completes its Orbit in 165 Years, the Neptunian Year is so long !!
   • Duration of Day 16 Hours
   • Each Neptunian Season Takes 40 Years

5. Rings (6)

   • Adams
   • Le Verrier
   • Galle