Neptune

Overview

• Neptune is the last planet in our Solar System
• It has at least 5 main rings and 14 known moons orbiting itself
• A day in Neptune is the equivalent of 16 hours on Earth
• Neptune's Magnetic field is 27 times more powerful than Earth's which is why it swings heavily during each rotation

Size and Distances

• Neptune's diameter is 30598 miles or 49244 kilometres making it roughly 4 times the size of Earth
• It is 2.8 billion miles or 4.5 billion kilometres from the Sun
• Neptune at is closest is 2.7 billion miles or 4.3 billion kilometres from Earth
• It is quite similar in composition and size to Uranus

Composition

• Neptune does not have a solid surface
• As an Ice Giant it is made of a dense fluid of Icy Materials
• This would include water, methane and ammonia above a small, rocky core
• Neptune's Ring System also has clumps of Dust called Arcs

Temperature and Atmosphere

• The average temperature of Neptune -201 degrees celsius
• Like the Gas Giants, Neptune's atmosphere is mostly Hydrogen and Helium
• Neptune is the windiest planet in the Solar System - Three Times that of Jupiter
• Its semi-solid state is the reason we call Neptune an Ice Giant