出典:Wikipedia
出典:『Wikipedia』 (2011/05/30 16:42 UTC 版)
Neptune is the eighth and farthest planet from the Sun in the Solar System. Named for the Roman god of the sea, it is the fourth-largest planet by diameter and the third-largest by mass. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth but not as dense. On average, Neptune orbits the Sun at a distance of 30.1 AU, approximately 30 times the Earth–Sun distance. Its astronomical symbol is ♆, a stylized version of the god Neptune's trident.
![]()
| ・Neptune | |
| ・awww | |
| ・Lpn3 | |
| ・freeing | |
| ・experts | |
| ・professionals | |
| ・Squares | |
| ・something like | |
| ・Laurel | |
| ・connectors |