Neptune

Mya Love

Neptune’s History

• Johann Gottfried, Urban Le Verrier , Heinrich Louis’d Arrest, and John Couch Adams discovered Neptune on September 23, 1846. Le Verrier sent his predictions to Gottfried and he went on from there. They spotted Neptune at The Berlin Observatory. Neptune was named after the Roman god of the sea by astronomers.

Solar System

•Neptune is 30.1 AU from the sun and 150 million km.

•Neptune’s orbital period is 60,190 earth days.

•Neptune’s rotation is 16 hours.

•Neptune is the 8th planet.

Neptune’s Measurements

• Mass: 102.4E24kg

• Volume: 62,525,703,987,421 km3

• Equatorial Circumference: 15,388

• Mean Density: 1.638 g/cm3

• Gravity: 11.15 m/s2

• A 100lb person would weigh 112.5lbs on Neptune

Neptune’s Composition and Atmosphere

• The core of Neptune is made up of rock and ice.

• The atmosphere of Neptune has Hydrogen deuteride, ethane, hydrogen, helium, and methane.

Neptune’s Surface Conditions• Neptune’s temperature is about -214

degrees Celsius or -353 degrees Fahrenheit. The wind speeds can get up to 2,100 km/hour.

• The weather on Neptune is wild. There are huge storms and high winds. Bright cirrus-like clouds that come and go and there is not a lot of sun.

Neptune’s Moons

• Neptune has 13 moons.

• Neptune’s moons are:

Triton, Proteus, Nereid, Larissa, Laomedeia, Psamasthe, Despina, Thalassa, Sao, Naiad, Galatea, Helimede, and Neso.

Triton

Triton is interesting because it is a frozen world as they call it.

•Triton is a moon that spews out nitrogen ice and dust particles out from below its surface.

Neptune’s Rings

• Neptune’s rings are narrow and thick in some parts. The rings are thick in some parts because of moonlets that Neptune’s gravitational pull pulls them in. Also Neptune’s rings are made out of ice and dust.

Neptune’s Exploration

• Voyager 2 was launched August 20th of 1977 and reached Neptune August 25th of 1989. The Hubble Space Telescope was sent but failed to get pictures of Neptune's Great Dark spot.

What would happen to humans if they travel to Neptune

• They would suffocate it all the gases

• They would get compressed under the gravity

• They would get shredded by the super sonic winds

• They would boil or freeze to death

What would a human need to live on Neptune?

• oxygen

• more sunlight

• planet needs to be smaller

• needs to be in the habitable zone of the solar system

• the weather needs to calmer

• planet needs a rocky core and oceans that aren’t icy

•water

•plants and trees for oxygen and food

Thanks For Watching!!!!!