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The Sun is about 100 times wider than Earth and about 10 times wider than Jupiter, the biggest planet. The Sun is the only star in our solar system. It is the center of our solar system, and its gravity holds the solar system together.
- The Sun
The Sun is the star at the heart of our solar system. Its...
- The Sun
The Sun is the star at the heart of our solar system. Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest bits of debris – in its orbit.
The Sun is the star at the center of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.
11 Αυγ 2023 · Astronomers have found planets that are twice as wide as Jupiter and more than 10 times as heavy, but there's a limit to how big planets can get.
26 Σεπ 2019 · The Sun is by far the largest object in the solar system. It contains more than 99.8% of the total mass of the Solar System (Jupiter contains most of the rest). It is often said that the Sun is an "ordinary" star. That's true in the sense that there are many others similar to it.
The biggest planet in the known universe is likely a giant exoplanet named ROXs 42 Bb. This gas giant, nearly 500 light-years from Earth, was discovered in 2013. According to NASA, ROXs 42 Bb has a radius that’s estimated to be 1.12 times that of Jupiter’s.
15 Σεπ 2018 · Compared with the billions of other stars in the universe, the sun is unremarkable. But for Earth and the other planets that revolve around it, the sun is a powerful center of attention.
