pneptunn

:: NEPTUNE ::

 
Metric
Scientific Notation
By Comparison
Discovered By Johann Galle
Date of Discovery 1846
Average Distance from the Sun 4,498,252,900 km 4.4982529 x 109 km (30.069 A.U.) 30.069 x Earth
Perihelion (closest) 4,459,630,000 km 4.45963 x 109 km (29.811 A.U.) 29.820 x Earth
Aphelion (farthest) 4,536,870,000 km 4.53687 x 109 km (30.327 A.U.) 30.326 x Earth
Equatorial Radius 24,764 km 2.4764 x 105 km 3.883 x Earth
Equatorial Circumference 155,597 km 1.55597 x 105 km -
Volume 62,526,000,000,000 km3 6.2526 x 1013 km3 57.7 x Earth's
Mass 102,440,000,000,000,000,000,000,000 kg 1.0244 x 1026 kg 17.147 x Earth's
Density 1.76 g/cm3 - 0.317 x Earth
Surface Area 7,640,800,000 km2 7.6408 x 109 km2 14.980 x Earth
Equatorial Surface Gravity 10.71 m/s2 - If you weigh 100 pounds on Earth, you would weigh 110 pounds on Neptune
Escape Velocity 85,356 km/h 23,710 m/s Escape velocity of Earth is 25,022 mph
Sidereal Rotation Period
(Length of Day)
0.67125 Earth days 16.11 hours - : 0.673 x Earth
Sidereal Orbit Period
(Length of Year)
164.79 Earth years 60,190 Earth days - -
Mean Orbit Velocity 19,720 km/h 5,477.8 m/s 0.490 x Earth
Orbital Eccentricity .00859 0.514 x Earth
Orbital Inclination to Ecliptic 1.769 degrees  
Equatorial Inclination to Orbit 29.58 degrees 1.261 x Earth
Orbital Circumference 28,142,000,000 km 2.8142 x 1010 km 30.44 x Earth
Effective Temperature -214 C 59 K  
Atmospheric Constituents Hydrogen, Helium, Methane H2, He, CH4 Earth's atmosphere consists mostly of N2 and O2
natural satelites 1. Naiad 2. Thalassa 3. Despina 4. Nereid 5. Galatea 6. Larissa 7. Proteus 8. Triton 9. S/2002 N1 10. S/2002 N2

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01.01.2013 14:51 Mladen
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