Neptune is named after the Greek god Poseidon
- Slides: 10
• Neptune is named after the Greek god Poseidon. • Poseidon is the god of the sea, Neptune was called Neptune because it was one important god who did not have a planet named in his honor.
• Neptune’s day is 17. 24 hours which means it takes that long to spin around. • The revolution of this planet takes longer than our lifetime, 165 years.
• The minimum distance from the Earth is 4. 3 billion kilometers, the maximum is unknown. • Neptune’s minimum distance from the sun is 4. 46 billion km and the maximum is 4. 54 billion km. • It is the 8 th planet from the sun and the 6 th from earth.
• • The density of Neptune is 1, 638 kg/m^3. Neptune is the 4 th largest planet. The diameter of Neptune is 49, 500 km. The volume of Neptune is 6. 25 x 1013 km 3. • The surface area of Neptune is 7. 64 x 109 km 2. • The mass of Neptune is 1. 02 x 1026 kg.
• The surface temperature is 218°C. During day= 350°C, Night=-170°C. • Neptune's atmosphere is made of 80% molecular hydrogen, 19% helium, and 1. 5% methane gas. • Also has hydrogen deutoride(HD) and ethane(C 2 H 6).
• There are 13 moons. They are Naiad, Thalassa, Despina, Galatea, Larissa, Proteus, Triton, Nereid, S/2002 N 1, S/2002 N 2, S/2002 N 3, and S/2002 N 4. • Physical characteristics are molten rock and metal, and has a 47° rotational. • Since its so far from the sun, it is really cold. • It is blue because the methane in the atmosphere reflects the blue light from the sun back into space.
• The water is also unsafe and would kill you if you tried to drink it. • It would be extremely windy and cold, earth has never had this much wind or coldness • You would not last more than one week, there is no oxygen and a lot of harmful chemicals.
• Scientists today believe that life on Neptune is likely to not be possible because of the hostile winds and temperature. • It is impossible because there is no atmosphere and oxygen for any life to breathe in. • If there was a life form with a very large jacket and an oxygen tank, then possible life forms could live there.
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