Neptune

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About 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
Neptune - the windiest planet
NASA Facts Page

Planet Information

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Updated: 2026-04-30 17:57:28+08:00
Group Property Value
Current Position Right Ascension 00h12m39s
Current Position Declination -00°04'03"
Current Position Constellation Pisces
Current Position Azimuth 290.86699147309747°
Current Position Altitude -22.959947741428856°
Current Position Elongation 36.85386129202379°
Distance Information Earth Distance 30.681624826323446 AU
Distance Information Sun Distance 29.881807250956683 AU
Distance Information Earth Distance (km) 4589905743.634245 km
Visual Information Magnitude 7.811257105023488
Visual Information Angular Diameter 2.2129678096309013"
Visual Information Phase Angle 1.1584799668110732°
Visual Information Illumination 99.98977985625112%
Orbital Elements Semi-major Axis 30.06992276 AU
Orbital Elements Eccentricity 0.00859048
Orbital Elements Inclination 1.77004347°
Orbital Elements Ascending Node 131.78422574°
Orbital Elements Argument of Perihelion 272.82339794°
Orbital Elements Mean Anomaly 2.401488371878969°
Orbital Elements Epoch J2000.0
Orbital Elements Orbital Period 60182.0 days
Derived Quantities Mass 1.02413e+26 kg
Derived Quantities Radius 24622 km
Derived Quantities Density 1.638 g/cm³
Derived Quantities Surface Gravity 11.15 m/s²
Derived Quantities Escape Velocity 23.5 km/s
Derived Quantities Perihelion 29.811607689928678 AU
Derived Quantities Aphelion 30.328237830071327 AU
Derived Quantities Orbital Velocity 5.435721958443489 km/s
Derived Quantities Rotation Period 16.11 hours
Derived Quantities Axial Tilt 28.32°
Rise, Set, Transit Times Rise Time N/A
Rise, Set, Transit Times Transit Time N/A
Rise, Set, Transit Times Set Time N/A
Rise, Set, Transit Times Visible Duration 0.0 hours
Rise, Set, Transit Times Best Observation N/A
Rise, Set, Transit Times Quality Rating Unknown

Annual Trajectory Chart

Daily Altitude Chart

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