The following is a comparison between Uranus and Neptune, the last two planets in the solar system. Let’s read.
Uranus vs Neptune – planet comparison
Which planet has a larger diameter, Uranus or Neptune?
Uranus has a larger diameter than Neptune. It is the third-largest planet by diameter in the solar system.
- Diameter of Uranus – 50,724 kilometers (31,518 miles)
- Diameter of Neptune – 49,244 kilometers (30,599 miles)
Which planet has more moons, Uranus or Neptune?
Uranus has 29 known moons, making it the planet with the third-highest number of moons in the solar system, after Saturn and Jupiter. Neptune has 16 known moons. As telescope technology improves, the number of moons around the gas giants may continue to increase with new discoveries.
Which planet has more mass?
Although Uranus is larger in diameter, Neptune is more massive.
- Mass of Uranus – 8.681 × 10^25 kg
- Mass of Neptune – 10.24 × 10^25 kg
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Does Uranus have rings?
Yes, Uranus also has rings around it. Moreover, all four gas giants have rings.
Does Neptune have rings?
Yes, Neptune has at least five main rings. These rings are very faint and are made up of small rocks and dust particles.
Which planet is more dense?
Both Uranus and Neptune have very low densities. Among the four gas giants, Neptune is the densest.
- Density of Uranus – 1.27 g/cm³
- Density of Neptune – 1.64 g/cm³
Comparison table
| Uranus | Neptune | |
|---|---|---|
| Diameter | 50,724 kilometers (31,518 miles) | 49,244 kilometers (30,599 miles) |
| Diameter rank | 3rd | 4th |
| Mass rank | 4th | 3rd |
| Position from the Sun | 7th | 8th |
| Number of moons | 29 | 16 |
| Day length | around 17 hours | around 16 hours |
| Year length | around 84 Earth years | around 165 Earth years |
| Composition | mostly water, ammonia, and methane (Atmosphere is mostly hydrogen, helium, and methane) | mostly water, ammonia, and methane (Atmosphere is mostly hydrogen, helium, and methane) |
| Distance from the Sun | 2.9 billion km (1.8 billion miles) | 4.5 billion km (2.8 billion miles) |
| Mass comparison to Earth | equal to 14.54 Earths | equal to 17.15 Earths |
| Volume comparison to Earth | equal to roughly 63 Earths | equal to roughly 58 Earths |
| Planet type | Ice giant | Ice giant |
| Ring system | Yes | Yes |
| Named after | the Greek god of the sky | the Roman god of the sea |
| Surface | doesn’t have a true solid surface | doesn’t have a true solid surface |
| Time taken by sunlight to reach | around 2 hours 40 minutes | around 4.1 hours |
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