myth and facts

Title : Amazing Facts about the Sun Previous topic PreviousNext Next topic

•    The sun is orbited by nine major planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.

•    The Sun is a star found at the center of the Solar System.

•    It makes up around 99.86% of the Solar Systems mass.

•    At around 1,392,000 kilometers (865,000 miles) wide, the Sun's diameter is about 110 times wider than Earth's.

•    The Sun also emits low density streams of particles, also known as the solar wind. These winds blow through the solar system at 450 km/sec and consist mostly of electrons and protons.

•    The Sun consists of the core, photosphere, chromospheres and corona, each with differing temperatures and components.

•    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 (5,000-6,000 on the Kelvin temperature scale) and has a complex chemistry, which means its makeup includes chemicals heavier than helium.

•    Four million tons of hydrogen is 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.

•    The outer part of the sun is about 10,000 degrees Fahrenheit. That is about fifty times hotter than the temperature at which water boils. It is so hot that all metals would be vaporized on the sun.

•    The core of the sun converts hydrogen to helium. The sun is basically a giant ball of gas.

•    However, the Romans used the name Sol, which is still in use today. Because of the important role the sun plays in our lives, it has been studied, perhaps, more than any other object in the universe, outside out own planet Earth. Our Sun has inspired mythology in almost all cultures, including ancient Egyptians, Aztecs, Native Americans, and Chinese.

•    Existing for about 4 and a half billion years, it has burnt up about half of the hydrogen in its core. This leaves the Sun's life expectancy to 5 billion more years, at which time; the Sun's elements will "swell" up, swallow Earth, and eventually die off into a small white dwarf.

•    Every 11 years, solar activity surges. The sunspots that pepper the sun explode, hurtling massive clouds of gas known as "CMEs" through the solar system. This is called “solar maximum.

•    The sun is the closest star to Earth and is 149.60 million kilometers (92.96 million miles) away.

•    Approximately every 11 years, the sun reverses its overall magnetic polarity: its north magnetic pole becomes a south pole, and vice versa.

•    The sun rotates on its axis once every 25.38 Earth days or 609.12 hours.

•    Approximately 109 planet Earths would fit on the surface of the sun and more than one million planet Earths would fit inside of the sun.

•    100,000,000,000 tons of dynamite would have to be detonated every second to match the energy produced by the sun.

•    Each year, as the Earth revolves around the sun, the seasons change. It is hottest in the summer when it is closest to the sun. However, it is not always the same seasons on all parts of Earth. Some parts of the Earth are closer to the sun at different times.

•    A solar eclipse occurs when the Moon is between the Sun and the Earth.

•    Light from the Sun reaches Earth in around 8 minutes.

•    The Sun's surface temperature is around 5500 degrees Celsius (9941 degrees Fahrenheit), so pack plenty of sunscreen if you plan on visiting (remembering that the average distance from the Sun to the Earth is around 150 million kilometers).

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