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| Orbital characteristics (Epoch J2000) |
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| Semi-major axis |
227,936,637 km
1,523 662 31 AU |
| Orbital circumference |
1,429,000,000 km
9,553 AU |
| Eccentricity |
0,093 412 33 |
| Perihelion |
206,644,545 km)
1,381 333 46 AU |
| Aphelion |
249,228,730 km
1,665 991 16 AU |
| Orbital period |
686,9600 d
(1,8808 a) |
| Synodic period |
779,96 d
(2,135 a) |
| Avg. Orbital Speed |
24,077 km/s |
| Max. Orbital Speed |
26,499 km/s |
| Min. Orbital Speed |
21,972 km/s |
| Inclination |
1,850 61°
(5,65° to Sun's equator) |
Longitude of the
ascending node |
49,578 54° |
Argument of the
perihelion |
286,462 30° |
| Natural satellites |
2 |
| Distance from Sun |
1,52 AU |
Physical characteristics |
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| Equatorial diameter |
6 804,9 km
(0,533 Earths) |
| Polar diameter |
6 754,8 km
(0,531 Earths) |
| Oblateness |
0,007 36 |
| Surface area |
1,448×108 km2 144 798 465 square kilometers
(0,284 Earths) |
| Volume |
1,6318×1011 km3
(0,151 Earths) |
| Mass |
6,4185×1023 kg
(0,107 Earths) |
| Mean density |
3,934 g/cm3 |
| Equatorial gravity |
3,69 m/s2
(0,376g) |
| Escape velocity |
5,027 km/s |
| Rotation period |
1,025 957 d
(24,622 962 h) |
| Rotation velocity |
868,22 km/h
(at the equator) |
| Axial tilt |
25,19° |
Right ascension
of North pole |
317,681 43°
(21 h 10 min 44 s) |
| Declination |
52,886 50° |
| Albedo |
0,15 |
Surface temperature
- min
- mean
- max |
133 K (−140 °C)
210 K (−63 °C)
293 K (20 °C) |
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