25 things about Neptune



1. Neptune is the eighth and farthest planet of the Sun; is the fourth largest planet in the Solar System and is 17 times larger than the Earth;

2. The average distance from Neptune to the Sun is 4,503,443,661 km, being about 30 times farther away than the Earth;

3. Neptune has an equatorial diameter of 48,528 and is 15 times heavier than Earth;

4. Neptune has a composition similar to its neighbor, Uranus, ~ 80% hydrogen, ~ 18% helium, ~ 1.5% methane and 0.5% other elements;

5. A zip is Neptune lasts only 16, instead one year is the equivalent of 165 Earth years;

6. Like all gaseous planets, Neptune does not have a solid surface, but a core of water, ammonia and methane; it is estimated that the core temperature is about 5,000 degrees Celsius;

7. Neptune has 13 known satellites, the largest being Triton, discovered just 17 days after Neptune;

8. On Neptune there is a large dark spot, similar to the Red Sea on Jupiter, discovered in 1989 by Voyager 2, which indicates meteorological activities in Neptune's atmosphere;

9. The average Neptune temperature is -218 degrees Celsius, being one of the coolest planets in the Solar System;

10. The blue color of Neptune is given by methane in the atmosphere;

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11. Neptune was named after the Greek god of the sea, Neptune;

12. Neptune receives 1/900 from the warmth of the Sun that the Earth receives;

13. Neptune has its own source of heat; it emits 2.7 times more heat than it receives;

14. Neptune has a thin, dark and incomplete ring system; because of this they are called arches;

15. On Neptune there are the biggest storms and the fastest winds in the Solar System; they also reach 2,100 km / h;

16. Neptune is the first planet discovered by the mathematical calculations of Urbain Le Verrier; was discovered on September 23, 1846 by Johann Gottfried Galle and Heinrich Louis d'Arrest;

17. The spacecraft Voyager 2 took 2.12 years to reach Neptune near August 25, 1989;

18. Scientists classify Uranus and Neptune as "gigantic ice" because of the rocks and ice;

19. Although Uranus has a higher equatorial diameter, Neptune is heavier;

20. The gravity of Neptune is similar to that on Earth;

21. The first person to observe the planet Neptune was Galileo Galilei; he thought Neptune was a star;

22. Although at such a distance from the Sun, the gravity of Neptune is 17% stronger than that on Earth; this is the closest percentage to the terrestrial gravity of the Solar System;

23. Neptune's magnetic field is 27 times stronger than Earth's;

24. Neptune's largest satellite, Triton, is the only one in the Solar System with a retrograde orbit, that is, it rotates in the opposite direction of rotation of the planet;

25. No space agency has any future plans for exploring Neptune;

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