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Mercury is the smallest actual planet of the eight comprising the solar system. It is actually smaller (but more massive) than the moons Ganymede and Titan. Mercury has about 5.5% of the mass of Earth.

Before 24 August 2006, Pluto considered the smallest planet of our solar system. On that date, the IAU modified the definition of "planet" and Pluto no longer qualified. It was reclassified as a "dwarf planet." There are a number of smaller objects, including dwarf planets, asteroids, and Kuiper Belt objects (past the orbit of Neptune).

Sizes of the Planets (largest to smallest)

Jupiter

Saturn

Uranus (3rd largest)

Neptune (3rd most massive)

Earth

Venus

Mars

Mercury

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6y ago
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12y ago

The smallest star that we know of is called: OGLE-TR-122b at 0.12 solar radii (that's 167,000 km).

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12y ago

Pluto is the smallest planet in the solar system.

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13y ago

There is only one star in our Solar System - the Sun. So it's the youngest and oldest star.

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7y ago

The sun is the only star in the solar system.

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12y ago

The smallest stars in the solar system is called the Orions Arm.

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12y ago

The youngest, and only, star in this solar system is the sun

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6y ago

Mercury is the smallest major planet in our solar system. The smallest dwarf planet is Ceres.

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11y ago

the answer is mercury

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9y ago

The planet Mercury.

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Q: What are the smallest stars called in the solar system?
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Related questions

What is the name of the smallest stars in the solar system?

Smallest or largest, there is only one star in our Solar System - The Sun.


What are the structures in space from smallest to largest?

stars solar system galaxies universe


What are the stars called that your solar system is apart of?

outer stars


What are the stars of your solar system called?

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According to some probability theories can the solar system exceed the the size of the smallest galaxy?

No. Even the smallest collection of stars would be far larger than even the largest solar system.


Sun and stars are called what in the solar system?

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Is mercury the smallest planet in space?

One cannot say for sure if it is the smallest planet in space, but it is the smallest planet in our Solar System.


What are the sizes of all the stars in your solar system?

There is only one star in our solar system; it is called The Sun.


What is the smallest member of the solor system?

in cases of stars, the answer is unknown due to the are of the solar system. in cases of planets, the answer is either Pluto or Mercury.


Which is the second smallest solar system?

We can't say, exactly. Since a solar system is just a system of bodies orbiting around a star (a star with a system orbiting it is called a sun), and there are billions of stars in every galaxy, we don't have nearly enough information to make even an educated guess about solar system size rankings.


Are there any stars ahead of your solar system?

Yes. There are no stars in the Solar System besides the Sun but there are over billions of stars out of our Solar System.


Your solar system is part of a group of stars called the?

Our solar system is part of the Orion Arm of the Milky Way galaxy.