Neptune
Neptune was discovered in 1846 through mathematical prediction — a triumph of celestial mechanics. It has wind speeds up to 2,100 km/h and its largest moon Triton on a retrograde orbit.
astronomy.planets.ice-giants
Metrics
Diameter
Equatorial diameter.
Mass
Corresponds to ~17.1 Earth masses.
Orbital Period
About 164.8 Earth years.
Distance from Sun
Mean distance (30.07 AU).
Relations
Both ice giants, but Neptune generates significantly more internal heat.
Explanations
Neptune is the eighth and most distant planet in our solar system, located about 4.5 billion kilometers from the Sun. What's remarkable: it was discovered in 1846 not by telescope alone, but through mathematical calculation – scientists predicted where it should be and then found it there, a major triumph for celestial mechanics. With wind speeds reaching 2100 km/h, Neptune has the strongest winds of any planet. It has 16 known moons, including the large moon Triton, which orbits in an unusual retrograde direction.
Sources
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Provenance
Status
seed
Review
none
Last Updated
2026-02-17