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By "size" do you mean its diameter (at equator) or its mass? (radius below is half the diameter) Planet radius mass "Mercury" 2439 3.30E+23 "Venus" 6052 4.87E+24 "Earth" 6378 5.98E+24 "Mars" 3398 6.42E+23 "Jupiter" 71492 1.90E+27 "Saturn" 60268 5.69E+26 "Uranus" 25559 8.69E+25 "Neptune" 24764 1.02E+26 "Pluto" 1160 1.32E+22 (technically no longer a planet ;-) So Venus is 95% the radius and 81% of the mass of Earth Compare that to Mars at 53% radius and 11% of the mass of Earth Neptune is 97% the radius and 117% the mass of Uranus. Saturn is 84% the radius and 30% the mass of Jupiter. So I'd say Neptune and Uranus.
What else can I help you with?
Does neptune spin clockwise or counter clockwise?
Every planet in our solar system rotates counterclockwise except Venus and Uranus.
Most of the angular momentum of the solar system is found in the?
The majority of the angular momentum of the solar system is found within the orbital motion of the planets around the Sun. This motion results in the spinning of the planets on their axes and the overall rotation of the solar system as a whole.
Why are all the planets the same size?
The planets of our solar system are most definitely NOT all the same size.
What are the Sun and the eight planets together known as?
Our solar system consists of:The SunThe 8 planetsThe 5 dwarf planetsThe moons that orbit the planets and dwarf planetsThe more than 700,000 smaller objects, known as minor planets, asteroids, and comets
What shape is the solar system?
The solar system is roughly a flat, disk-like shape, with most planets orbiting the Sun in relatively the same plane. This configuration is due to the way the solar system formed from a rotating cloud of gas and dust, which flattened out into a disk as the planets formed.
What is most similar among the planets in your solar system?
Probably Venus and Earth.
Does neptune spin clockwise or counter clockwise?
Every planet in our solar system rotates counterclockwise except Venus and Uranus.
Which planets are rocky in your solar system?
most of inner planets
Do most planets not have moons?
No. Most planets do. Six of the eight planets in our solar system have at least one moon.
Is polaris a solar system?
Polaris is a star. It is likely that it has planets, i.e. that there is a related solar system, since most stars seem to have planets.
Are the moons as old as the planets that they circle?
In most cases, the moons are about as old as the planets they orbit, perhaps slightly younger. Most objects in the solar system formed when the solar system did.
Why are all planets in a solar system?
Not all planets are associated with a star. While most planets are in a solar system as they are the leftover material from star formation. there are some free roaming planets in space not associated with a solar system. They may have been formed as part of a planetary system but have escaped due to gravitational interactions or collisions with other planets in the system.
Do most planets have moons?
In our Solar System all planets have moons, except for Mercury and Venus.
Why do planets in your solar system revolve around the sun?
the Sun is the most massive object in our solar system.
Most of the angular momentum of the solar system is found in the?
The majority of the angular momentum of the solar system is found within the orbital motion of the planets around the Sun. This motion results in the spinning of the planets on their axes and the overall rotation of the solar system as a whole.
What planets is the SECOND largest and most massive planet in the Solar System?
Saturn is the second largest and most massive planet in the Solar System, after Jupiter.
What are the heavenly bodies composed in a solar system?
Star (sun), planets, moons, dwarf planets, meteoroids, asteroids, comets. That's most of them, based on what's in our solar system.
