(2.77 billion miles)
(2.82 billion miles)
(2.68 billion miles)
| Planetary Symbol: | |
Name in Roman/Greek Mythology: | Neptune/Poseidon |
|---|---|---|---|
| Diameter: | 49,493 km (30,760 miles) | Rotation Period about Axis: | 17.24 hrs |
| Mass: | 102.4x10^24 kilograms (17.2 x Earth's) | Revolution Period about the Sun: | 165 years |
| Density: | 1,638 kg/m^3 | Tilt of Axis: | 29o 36" |
| Minimum Distance from Sun: | 4.46 billion km (2.77 billion miles) |
Surface Gravity: | 11 m/s^2 (1.12 x Earth's) |
| Maximum Distance from Sun: | 4.54 billion km (2.82 billion miles) |
Temperature at Cloud Tops: | -210o C ( -346o F) |
| Orbital Semimajor Axis: | 30.07 AU (Earth=1 AU) | Average Cloud Top Temperature (K): | 63K |
| Minimum Distance from Earth: | 4.3 billion km (2.68 billion miles) |
Satellites/Rings: | known moons, faint rings |
Comparative Planetary Statistics -- in table form
Comparative Orbital Statistics -- in table form
Last modified October 31, 2003 by Randy Russell.
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