Which is smaller Pluto or Mercury?
But accurate measurements helped scientists conclude that Pluto was the smaller planet. … In terms of size, scientists now know that Mercury is significantly larger than Pluto. The diameter of Mercury is 4,879.4 km across, while Pluto’s diameter is 2,360 km across. So Mercury is about twice as large Pluto.
What are the 9 planets in order?
The order of the planets in the solar system, starting nearest the sun and working outward is the following: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and then the possible Planet Nine. If you insist on including Pluto, it would come after Neptune on the list.
What is the sixth largest planet?
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius of about nine times that of Earth.
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Saturn.
| Designations | |
|---|---|
| Polar radius | 54,364 km (33,780 mi) 8.552 Earths |
| Flattening | 0.09796 |
| Circumference | 365882.4 km equatorial (227348.8 mi) |
Is Uranus the 5th largest planet?
Uranus is the seventh planet from the Sun. … It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. Uranus is similar in composition to Neptune, and both have bulk chemical compositions which differ from that of the larger gas giants Jupiter and Saturn.
What is the biggest planet on Earth?
Jupiter, being the biggest planet, gets its name from the king of the ancient Roman gods. Despite its size, Jupiter has the shortest day of any other planet; it only takes about 10 hours for a complete rotation.
Is Pluto smaller than Russia?
Russia has a bigger surface area than Pluto.
Pluto’s surface area is 16.7 million square kilometers. Russia’s surface area is 17,098,242 sq km.
What are the 15 planets?
Planets in Our Solar System
- Mercury. Mercury—the smallest planet in our solar system and closest to the Sun—is only slightly larger than Earth’s Moon. …
- Venus. Venus spins slowly in the opposite direction from most planets. …
- Earth. …
- Mars. …
- Jupiter. …
- Saturn. …
- Uranus. …
- Neptune.
What planet is the hottest?
Venus is the exception, as its proximity to the Sun and dense atmosphere make it our solar system’s hottest planet. The average temperatures of planets in our solar system are: Mercury – 800°F (430°C) during the day, -290°F (-180°C) at night. Venus – 880°F (471°C)
Is there a 9th planet?
Planet Nine is a hypothetical planet in the outer region of the Solar System. … Based on earlier considerations, this hypothetical super-Earth-sized planet would have had a predicted mass of five to ten times that of the Earth, and an elongated orbit 400 to 800 times as far from the Sun as the Earth.
Which is the sixth smallest planet?
However, it is considered a dwarf planet at approximately one-sixth the mass of Earth’s moon. Pluto is primarily composed of rock and ice, with relatively little is known about this dwarf planet.
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The Smallest Planet In The Solar System – Mercury.
| Equatorial Circumference | 15,329 km |
|---|---|
| Surface Temperature | -173 to 427°C |
What is the biggest star in the universe?
The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun.
Can we live on Saturn?
While planet Saturn is an unlikely place for living things to take hold, the same is not true of some of its many moons. Satellites like Enceladus and Titan, home to internal oceans, could possibly support life.
What is the smallest planet in the universe?
The smallest planet in our solar system and nearest to the Sun, Mercury is only slightly larger than Earth’s Moon.
What is the fourth smallest planet?
Earth, of course, is the third closest planet to the Sun and the fourth smallest with a radius of 3963 miles (6378 km). Just past Earth is Mars, the fourth planet in the solar system. Mars is the second smallest planet with a radius of 2111 miles (3397 km).
Why is Uranus lying on its side?
The ice giant is surrounded by 13 faint rings and 27 small moons as it rotates at a nearly 90-degree angle from the plane of its orbit. This unique tilt makes Uranus appear to spin on its side, orbiting the Sun like a rolling ball.