Pluto
| Pluto | |
|---|---|
| 240px | |
| Pluto in Orbiter | |
| Designation | |
| Name | Pluto |
| Reference body | Sun |
| Number of satellites | |
| Planetary mean orbits | |
| Epoch | J2000 (1 January 2000) |
| Semimajor axis (a) | 39.48168677 AU (5.906376272×1012 km) |
| Eccentricity (e) | 0.24880766 |
| Inclination (i) | 17.14175° (0.299180 radian) |
| Longitude of the ascending node (LAN, ☊) | 110.30347° (1.925159 radian) |
| Longitude of periapsis (ϖ) | 224.06676° (3.910703 radian) |
| Mean longitude (L) | 238.92881° (4.170094 radian) |
| Planetary orbital element centennial rates | |
| Semimajor axis (a) | -0.00076912 AU/Century |
| Eccentricity (e) | 0.00006465 Century-1 |
| Inclination (i) | 11.07 seconds/Century |
| Longitude of the ascending node (LAN, ☊) | -37.33 seconds/Century |
| Longitude of periapsis (ϖ) | -132.25 seconds/Century |
| Mean longitude (L) | 522747.90 seconds/Century |
| Selected physical parameters | |
| Mean radius | 1151 km |
| Mass | 1.5×1022 kg |
| Density | 1.1 g/cm3 |
| Sidereal rotation period | 153.28 hours |
| Sidereal orbit period | 248.0208 years |
| Magnitude V(1,0) | -1.0 |
| Geometric albedo | 0.3 |
| Equatorial gravity | 0.655 m/s2 |
| Escape velocity | 1.3 km/s |
| Rotation elements | |
| North pole right ascension (α1) | 311.50° |
| North pole declination (δ1) | 4.14° |
| Obliqutiy of ecliptic | 68.69° |
| Longitude of Sun's transit | 225.19° |
| Atmospheric parameters | |
| Ecliptic position from primary* | |
| Note | *Elements given are from Orbiter.pdf (2016) |
Pluto is a dwarf planet in the Solar System.[1] Its formal name is 134340 Pluto. The dwarf planet is the ninth largest body that moves around the Sun. At first, Pluto was called a planet. Now, it is the largest body in the Kuiper belt.
Like other members of the Kuiper belt, Pluto is mainly made of rock and ice. It is quite small. It is about a fifth (⅕) of the weight of the Earth's Moon. It is only a third (⅓) its volume. Pluto is very far from the Sun, so its temperature is very low. The average temperature on Pluto is -223 degrees Celsius. It has an odd orbit and this orbit is very sloped. It takes Pluto to 30 to 49 AU (4.4–7.4 billion km) from the Sun. This causes Pluto to sometimes go closer to the Sun than Neptune.
Pluto is not included in the standard Orbiter distribution, but an addon can be downloaded from Orbithangar.[2]
Further information at Wikipedia: http://simple.wikipedia.org/wiki/Pluto
References[edit]
- ↑ Pluto Overview, Retrieved 2019-04-01
- ↑ Pluto and Moons, Retrieved 2019-04-01
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