Neptune

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Neptune

• The Great Blue Sphere

Charlie H. Debra M.
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Vital Statistics

• Semi-Major Axis of 30.06 AU
• Radius of 3.81 Earth Radii
• Mean Temperature -200.15C, -328.27F
• Average Surface Pressure 1-3 bars

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Vital Stats (contd.)

• Atmosphere made up of 85 Hydrogen, 13 Helium,
  and 2 Methane (CH4)
• Clouds are composed mainly of Methane
  (hydrocarbon which gives the planet its blue
  coloring)

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Vital Stats (contd.)

• There are no polar caps on Neptune
• There are no craters on the planet itself, though
  the moon Triton does have craters
• There is no liquid water on the planet
• There are nitrogen containing volcanoes, now
  extinct, on Triton

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Weight on Neptune

• Due to Neptunes weight ratio of 1/4.4164, weight
  may be determined as
• 122 earth lbs. 27.6243 Neptune lbs.

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Neptune Rotation and Weather
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Neptunes Moons

• Neptune has 13 known moons
• 7 small named ones, as well as Triton, and 5
  un-named ones discovered in 2002-3.
• Named moons Naiad, Thalassa, Despina, Galatea,
  Larissa, Proteus, Triton, Nereid.

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Points of Interest

• Neptune was discovered on September 23, 1846
• Discovered in Berlin, Germany by Johann Gotfried
  Galle

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