Neptune
Detailed InformationAbout Neptune
Neptune is a world of supersonic winds and deep blue mysteries. As the most distant planet from the Sun, Neptune takes 165 Earth years to complete one orbit. Despite receiving only one-thousandth of the sunlight that Earth gets, Neptune radiates 2.6 times more energy than it receives from the Sun. The planet hosts the fastest winds in the solar system, reaching speeds of up to 1,200 mph (2,000 km/h). Its deep blue color comes from methane in its atmosphere, which absorbs red light and reflects blue wavelengths back to space.
Quick Facts
- Most distant planet from the Sun
- Fastest winds in the solar system
- Deep blue color from methane
- Takes 165 Earth years to orbit the Sun
Current Position
Equatorial Coordinates
Right Ascension: 00h06m36s
Declination: -00°42'28"
Constellation: Pisces
Horizontal Coordinates
Azimuth: 82.6°
Altitude: -9.7°
Elongation: 6.4°
Distance Information
Earth Distance: 30.871 AU
Sun Distance: 29.883 AU
Earth Distance: 4618257708 km
Visual Information
Magnitude: 7.8
Angular Diameter: 2.2"
Phase Angle: 0.2°
Phase Information
Illumination: 100.0%
Orbital Elements
Basic Parameters
Semi-major Axis: 30.069923 AU
Eccentricity: 0.008590
Inclination: 1.770°
Angular Elements
Ascending Node: 131.784°
Argument of Perihelion: 272.823°
Mean Anomaly: 2.126°
Time Elements
Epoch: J2000.0
Orbital Period: 60182.0 days
Period: 164.8 years
Derived Quantities
Physical Properties
Mass: 1.02e+26 kg
Radius: 24622 km
Density: 1.638 g/cm³
Gravitational Properties
Surface Gravity: 11.15 m/s²
Escape Velocity: 23.50 km/s
Orbital Characteristics
Perihelion: 29.812 AU
Aphelion: 30.328 AU
Orbital Velocity: 5.44 km/s
Rotation Properties
Rotation Period: 16.11 hours
Axial Tilt: 28.32°
Annual Trajectory Chart
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Daily Altitude Chart
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Time Settings
Location Settings
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