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Apr 17, 2024 · Interesting facts about the Sun. 1. The science of studying the Sun and its influence in the Solar System is called “heliophysics”. “Helio-” refers to the Sun, and “-physics” to the study of matter, energy, and their interaction. 2. Although the Sun is extremely big, there are other stars in the Universe that are even larger.
- One million Earths could fit inside the Sun. A hollow Sun would fit around 960,000 spherical Earths. If squished inside with no wasted space, then around 1,300,000 would fit inside.
- The Sun contains 99.86% of the mass in the Solar System. The mass of the Sun is approximately 330,000 times greater than that of Earth. It is almost three quarters Hydrogen, whilst most of the remaining mass is Helium.
- The Sun is an almost perfect sphere. There is a 10-kilometre difference between the Sun’s polar and equatorial diameter. This means it is the closest thing to a perfect sphere that has been observed in nature.
- The Sun will consume the Earth. When the Sun has burned all its Hydrogen, it will continue to burn helium for 130 million more years. During this time, it will expand to the point that it will engulf Mercury, Venus, and the Earth.
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Our Sun: Facts. Our Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system. It’s about 93 million miles (150 million kilometers) from Earth and it’s our solar system’s only star. Without the Sun’s energy, life as we know it could not exist on our home planet.
- The sun is orbited by nine major planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto (no longer an official planet).
- Classified as a G2 dwarf due to its size, heat, and chemical makeup, the sun is a medium-sized star. A G star is cool (between 5,000-6,000 on the Kelvin temperature scale) and has a complex chemistry, which means its makeup includes chemicals heavier than helium.
- Based on the average life of a G2 star, the present age of the sun is estimated to be 4.6 billion years, halfway through its lifetime.
- Four million tons of hydrogen are consumed by the sun every second, which helps to create the sun’s composition of 75 percent hydrogen, 23 percent helium, and 2 percent heavier elements.
Sun Facts – What is the Sun? The Sun is the star at the center of our solar system. It is a big ball of gas and plasma that generates its own energy through nuclear fusion in its core. As our one and only star, it is the only natural source of light in the entire solar system.
Source: Andrew Caw. What Is the Sun? The Sun is a huge luminous object made from hydrogen and helium. It’s a main-sequence star or yellow dwarf star. It produces heat, energy, and photons. The Sun is at the center of our solar system. It’s the closest star to Earth, and it sustains life on Earth.
May 6, 2024 · It is a yellow dwarf star. Credit: NASA/JPL-Caltech. But even though our Sun is kind of an ordinary star, there are also a few things that make our Sun quite special. For example… We can’t live without the Sun! Life on Earth depends on the Sun. Here are just a few reasons why: The Sun’s gravity holds our entire solar system together.
