Welcome to Neptune

1. Welcome to Neptune By Nhat Anh

2. Content What is Neptune Internal staked What is Neptune made of Storm Discovery Exporation

3. What is Neptune ? Neptune is the eighth and farthest planet from the sun in our solar system. Name for the Roman god of the sea, it is fourth-largest planet by diameter and the third-largest by mass. Neptune is 17 time the mass of Earth and Is slightly more massive than its near-twin Back

4. What Neptune made of Like the rest of the giant gas planet in The solar system, they all can be broken up into various layer. The composition of Neptune changes depend on which of these layer you’re looking at. Back

5. Discovery Galileo drawings show that he first observed Neptune on December 28, 1612, and again on January 27, 1613. On both occasions, Galileo mistook Neptune for a fixed star when it appeared very close in conjunction to Jupiter in the night sky hence, he is not credited with Neptune's discovery. During the period of his first observation in December 1612, Neptune was stationary in the sky because it had just turned retrograde that very day. This apparent backward motion is created when the orbit of the Earth takes it past an outer planet Back

6. Internal structure Internal structure Neptune's internal structure resembles that of Uranus. Its atmosphere forms about 5 to 10 percent of its mass and extends perhaps 10 to 20 percent of the way towards the core, where it reaches pressures of about 10 GPA. Increasing concentrations of methane, ammonia and water are found in the lower regions of the atmosphere. Back

7. Strom • In 1989, the Great Dark Spot, an anti-cyclonic storm system spanning 13000×6600 km, was discovered by NASA's Voyager 2 spacecraft. The storm resembled the Great Red Spot of Jupiter. Some five years later, however, on November 2, 1994, the Hubble Space Telescope did not see the Great Dark Spot on the planet. Instead, a new storm similar to the Great Dark Spot was found in the planet's northern hemisphere. Back

8. Exploration • Voyager 's closest approach to Neptune occurred on August 25, 1989. Since this was the last major planet the spacecraft could visit, it was decided to make a close flyby of the moon Triton, regardless of the consequences to the trajectory, similarly to what was done for Voyager 1's encounter with Saturn and its moon Titan. The images relayed back to Earth from Voyager 2 became the basis of a 1989 PBS all-night program, Neptune all night . Back

9. Thank you for looking At Nhat anh PPT