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Neptune

16 recognized moons

Illustrated moon positions

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Bodies to scale · Distances compressed · Major orbits shown

Ice giant

Neptune

NASA facts ↗

The most distant planet is an ice giant. Clouds and strong winds move through its atmosphere, far beyond the inner rocky worlds.

Mean diameter
49,244 km
Year
164.8 Earth years
Mean distance from Sun
30.07 AU

16 of 16 moons have a mean orbital reference here. Inner system covers mean distances within 80 parent radii. Locations along the orbits are illustrated, not current ephemerides.

About this view & sources

Measured body diameters share one scale. Moon distances are compressed separately. Point markers identify moons without a measured diameter; they are not scaled spheres.

Illustrated orbital arrangement, not current moon positions. Published mean semimajor axes, eccentricities and inclinations define the reference orbits. Complete orientation and phase are unavailable in this projection; marker locations are illustrative. The local orbital plane is schematic.

Planet maps show representative appearances, not current photographs. The Sun uses an actual NASA JPL SDO/STEREO 2012 mosaic at 304 Å: false-colour ultraviolet imaging of the chromosphere, not visible-light colour or current activity. Its glow is illustrative.

Inner system: satellites with a mean orbital distance within 80 parent-planet radii. All moons retains every source member and plots every available orbit.

Surface maps are representative NASA/JPL/Caltech/USGS mosaics, with source-image gaps and cleanup. All available moon positions are plotted; only major orbits are drawn together. Outlined marks locate small moons. Solid dots identify unavailable diameters. Small moons with known diameters use reference spheres for size, not detailed shape models.