Saturn size and scale context

Saturn is a gas giant best known for its bright ring system, but the planet itself is also the least dense world in the Solar System. Its average density is lower than water, and its layered atmosphere is driven by powerful winds and storms beneath the rings that dominate its silhouette. Read its scale context, comparisons, and journey links on the canonical object page.

NeptuneIce giant planet·49,528 km

UranusIce giant planet·50,724 km

NGC 4395 Black HoleIntermediate-mass black hole·59,000 km

SaturnGas giant planet·116,460 km

JupiterGas giant planet·140,000 km

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Black holes

NGC 4395 Black Hole

The black hole in NGC 4395 powers an active galactic nucleus inside a small bulgeless galaxy. Its existence helped show that a galaxy does not need a large central bulge to host a feeding central black hole.

Scale fact59,000 kmevent horizon diameter

Object class: Intermediate-mass black hole
Host: NGC 4395
Mass: ~10,000 solar masses

Planets

Saturn

Scale fact116,460 kmdiameter

Object class: Gas giant planet
Mass: ~95 Earth masses
Host: Sun
Estimated age: ~4.5 billion years
Composition: Hydrogen and helium
Temperature: ~134 K cloud tops

Planets

Jupiter

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.

Scale fact140,000 kmdiameter

Object class: Gas giant planet
Mass: ~318 Earth masses
Host: Sun
Estimated age: ~4.5 billion years
Composition: Hydrogen and helium
Temperature: ~110 K cloud tops