Neptune
The windy blue giant
The farthest planet from the Sun, Neptune hosts the fastest winds in the solar system — over 2,100 km/h — and was discovered by mathematics before being seen.
Image: NASA / Voyager 2
Vital statistics
Moons
14 known
Gravity vs Earth
1.14 g
Day length
16h 6m
Year length
165 Earth years
Diameter
49,244 km
Wind speed
Up to 2,100 km/h
Did you know
Predicted mathematically before its discovery in 1846.
Fact 01
Its moon Triton orbits backwards and may be a captured Kuiper Belt object.
Fact 02
Has completed only one orbit since discovery (in 2011).
Fact 03
Research & publications
Jump straight into peer-reviewed papers, preprints and authoritative references for Neptune.
arXiv (preprints)
Open-access preprints in physics & astrophysics.
NASA ADS
The definitive bibliographic database for astronomy.
Google Scholar
Cross-publisher academic search.
Nature
Peer-reviewed articles in Nature & sister journals.
Wikipedia
Encyclopedic overview & onward references.
Tip: ask the Research AI for a curated reading list → /research
