The sun's mass is estimated to be 1.989 times 10E30 kilograms, about the equivalent of 333,000 Earths, and has a diameter of about 864,938 miles. About 99.8 percent of the entire mass of the solar system is contained within the sun.Know More
The sun is a relatively small star in the Milky Way Galaxy. It is classified as a yellow dwarf star, also called a G dwarf star, and it is one of about 10 billion similar stars in the galaxy. Red giant stars, such as Betelgeuse, are much more voluminous.
Astronomers think that in about 5 billion years, the sun will use up all its hydrogen and become a red giant itself. This transformation will destroy all the inner solar system planets, including the Earth.Learn more about Our Sun
There are over a dozen man-made satellites orbiting the sun. Natural satellites orbiting the sun include planets, dwarf planets, asteroids and comets. There are eight planets orbiting the sun, and as of January 2015, six dwarf planets and almost 700,000 comets and asteroids have been discovered.Full Answer >
The sun does not have a single uniform temperature. Instead, the sun exhibits multiple temperatures from the core to the corona, with a range of over 25 million degrees Fahrenheit.Full Answer >
The four outer layers of the sun are the photosphere, chromosphere, transition region and corona. The photosphere is directly observable, and it is the deepest layer of the sun.Full Answer >
Earth's solar system has only one sun, but if the word "sun" is taken to mean "any star with planets in orbit," the Milky Way might have as many as 400 billion suns. If the observed ratio of approximately one planet per star is consistent everywhere, the observable universe might contain 10^24, or 1 septillion, suns.Full Answer >