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The planet known for being the Earth's twin is the planet Venus.
Venus is a near twin of Earth in size and mass but is completely enveloped by thick clouds of concentrated sulfuric acid droplets. Its surface gravity is about 90% that of Earth. Its atmosphere is over 96% carbon dioxide, with a pressure about 95 times Earth's.
Venus is known as the twin planet of Earth because Venus and Earth are similar in size and some other attributes.
Similarities:- Earth is only 5% larger by radius.
- They are similar distances from the Sun, Venus being closer at .72 times Earth's distance.
- Orbital velocities are similar, Venus being 18% greater while its orbital period is only 61% that of Earth, i.e. .61 years.
- Density of Venus is 95% of Earth's density, so size and composition are similar.
- Both are "rocky" planets and both have atmospheres. (Mercury and Mars have very little atmosphere.)
- Gravity at the surface of Venus is only 10% less that Earth's.
- Both planet's have a metal core at least partially molten.
- Both experience the "greenhouse effect" heating the atmosphere. (See temperature below for the consequence higher carbon dioxide levels.)
- Both Venus and Earth experience lightning produced in their clouds.
- Both Venus and Earth have nearly circular orbits, among the most circular of all planets.
- A day on Venus is 117 days on Earth.
- Atmospheric pressure on Venus is 92 times Earth's, i.e. 92 atmospheres.
- Venus rotates backwards and spins on its axis opposite to other planets.
- Venus has a surface temperature of 735 K (462 °C; 863 °F). The greenhouse effect with the dense atmosphere and clouds creates the extreme temperature.
- The atmosphere on Venus is over 96% carbon dioxide.
- There is virtually no water on Venus.
- Temperature on Venus is the same night and day and on the poles and equator and there are no seasons.
- Venus has almost no magnetic field and hence lacks this protection against the cosmic radiation that Earth enjoys.
- The small magnetic field Venus does have does not arise from the geodynamo effect as it does in Earth's core. Venus has no geodynamo.
- Earth has a moon and Venus does not, though it probably used to have one.
- Plate tectonics does not occur on Venus in the way that crustal plate migrate on Earth. Instead, the surface undergoes a nearly planet-wide restructuring at intervals estimated to be a few hundred million years.
- Venus rotates very very slowly, with the speed of the surface at the equator being only 6.5 km/hour compared to Earth's 1,670 km/hr.
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What is Neptune's twin?
Neptune does not have a known twin in our solar system. Its closest "twin" in terms of size and composition would be Uranus, which is a similar ice giant planet.
What planet is called the outermost planet?
With Pluto now regarded as a dwarf planet, the answer is Neptune. There are times when Pluto's orbit takes it inside Neptune for about 20 years at a time out of its 248 year orbit, as it did from 1979 to 1999. So even when Pluto was considered a planet, it wasn't always the furthest away from the Sun.
It is the eighth planet sometimes nineth?
The eighth planet in our solar system is Neptune, while the ninth planet used to be Pluto. However, Pluto was reclassified as a dwarf planet in 2006, so currently, Neptune is considered the eighth and last major planet in the solar system.
Is Pluto thhe ninth planet from the sun?
Pluto has been recategorised as a dwarf planet. Until its change in status it was considered to be the ninth planet from the sun. Though, on occasion, its orbit brought it closer than to the sun than Neptune, the eighth planet.
Is Neptune is usually the eight planet outward from the sun?
The outer planets are Jupiter, Saturn, Uranus, and Neptune. Pluto used to be considered an outer planet until it was no longer considered to be a planet.The inner planets are Mercury, Venus, Earth and Mars.
Why is Neptune not considered as the planet in the Solar System?
Neptune is considered as a planet. It's Pluto that's not considered as a planet due to its small size.
What planet is often called the planetary twin?
the planet that is often called the planetary twin is Neptune, because of it's resemblance of the planet Uranus.
What is the twin planet of Jupiter?
the closest thing in our solar system to a double planet is Pluto-Charon, since they have a barycenter outside the two bodies. however, they are no longer considered planets. Some people call Neptune and Uranus twin planets because their composition is similar as are their looks.
Why is Pluto considered a planet?
It is not considered a planet, it is a planet, just like Earth, Venus, Neptune (etc).
Is Uranus a twin planet to Earth?
No. Uranus is the twin planet of Neptune. The twin planet of Earth is Venus. There has also been a new planet discovered recently, 600 light years away, called Kepler-22b, which seems to be very identical to planet Earth.
What is Neptune's twin?
Neptune does not have a known twin in our solar system. Its closest "twin" in terms of size and composition would be Uranus, which is a similar ice giant planet.
What planet is usally eighth from sun?
the 8th planet from the sun is neptune but not always, Pluto has an inclined orbit so for part of the year Pluto is the 8th planet from the sun and neptune is the 9th, but some people don't think Pluto is a planet.
Which planet is nearer Pluto?
Neptune is now considered the outermost planet, Pluto is the next one but it is no longer considered a planet.
What planet is know as the twin to Uranus?
Neptune. Uranus and Neptune are both icy worlds in the far edges of the Solar System, and are similar in size and composition.
What is the biggest mountain on Neptune?
Neptune is considered a gas planet meaning that it has no solid ground. Because of this Neptune does not have any mountains.
What planet has a a rapidly moving cloud called the scooter?
Neptune is the planet that has the moving cloud nicknamed 'scooter'. Neptune is considered a gas giant, and is the eighth planet from the Sun.
What planet is called the outermost planet?
With Pluto now regarded as a dwarf planet, the answer is Neptune. There are times when Pluto's orbit takes it inside Neptune for about 20 years at a time out of its 248 year orbit, as it did from 1979 to 1999. So even when Pluto was considered a planet, it wasn't always the furthest away from the Sun.
