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Jupiter
Details
Jupiter is the largest planet in the Solar System. It is more massive than all the other planets combined and still spins once in only about 10 hours, giving the giant world the shortest day in the planetary family.
Jupiter is the solar system’s giant that never really stands still. It has no true solid surface, only deep layers of hydrogen and helium, so what you notice is its atmosphere and weather rather than a place to land. That is part of its appeal: Jupiter is huge, but its identity comes from motion.
NASA describes Jupiter’s stripes and swirls as bands and zones of cold cloud tops driven by fast winds, with the Great Red Spot as the most famous long-lived storm. The planet spins once in about 9.9 hours, and that fast rotation helps power the restless circulation and strong magnetic field that surround it. The result is not a static globe but a planet-scale weather system.
Jupiter also feels like a miniature system of its own. Its moons, faint rings, and strong gravity make the region around it behave almost like a small planetary realm. Jupiter is not just the largest planet; it is a moving architecture of atmosphere, storms, and satellites.
52,000km
Visual creditNASA / JPL-Caltech / SwRI / MSSS / Kevin M. Gill / Public domainSource: Wikimedia Commons
Key facts
- Scale fact
- 140,000 kmdiameter
- Estimated age
- ~4.5 billion years
- Composition
- Hydrogen and helium
- Temperature
- ~110 K cloud tops
Scale context
Where Jupiter sits on the full axis
By size on the journey, Jupiter sits between HLX-1 and Proxima Centauri. The band below compares Jupiter with nearby Gas giant planet objects so the size jump stays easy to read.
Together, these objects make the size change around Jupiter easy to compare at a glance.
Between the smallest and the largest, perspective is everything.
About
Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.
Guides turn parts of that scale into curated essays, while focused views let you explore the same range through specific groups of objects.