According to the science of astronomy, is the definition of:
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All massive objects (with mass between 0.08 to 200 solar masses) that are and never perpetuate the generation of energy through nuclear fusion reactions.
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Therefore, white dwarfs and neutron stars that have not emit light or energy would be referred to as a star.
Here are 5 star closest to Earth:
1. sun
The sun is a giant ball of gas that is formed from hydrogen and helium. |
Sun including white star that acts as a center of the solar system components including surya.Seluruh 8 planets and their satellites, dwarf planets, asteroids, comets, and dust rotating around the outer side of the center of circulation Matahari.Di, the Sun is also a energy sources for sustainable living. Hot sun warms the earth and formed the climate, while the light illuminates the Earth as well as the process used by plants to fotosintesis.Tanpa sun, there would be no life on Earth because many chemical reactions can not take place.
This is the most beautiful star in the universe, because without him we obviously will never exist :)
Based on calculations using Newton's law involving the value of the Earth's orbit speed, distance of the Sun, and the force of gravity, the mass of the Sun obtained at 1.989 x1030 kilograms. The number is equal to 333,000 times the mass Bumi.Sementara, the diameter of the Sun is 1.392 million kilometers or 865,000 miles, equal to 109 times the diameter of Earth.
The sun is the closest star to the Earth, which is an average of 149.6 million kilometers (92.96 million miles). Distance Sun to the Earth is known as the astronomical unit and the usual rounded (for simplification count) to 150 million km.
Sun including white star that acts as a center of the solar system components including surya.Seluruh 8 planets and their satellites, dwarf planets, asteroids, comets, and dust rotating around the outer side of the center of circulation Matahari.Di, the Sun is also a energy sources for sustainable living. Hot sun warms the earth and formed the climate, while the light illuminates the Earth as well as the process used by plants to fotosintesis.Tanpa sun, there would be no life on Earth because many chemical reactions can not take place.
This is the most beautiful star in the universe, because without him we obviously will never exist :)
Based on calculations using Newton's law involving the value of the Earth's orbit speed, distance of the Sun, and the force of gravity, the mass of the Sun obtained at 1.989 x1030 kilograms. The number is equal to 333,000 times the mass Bumi.Sementara, the diameter of the Sun is 1.392 million kilometers or 865,000 miles, equal to 109 times the diameter of Earth.
The sun is the closest star to the Earth, which is an average of 149.6 million kilometers (92.96 million miles). Distance Sun to the Earth is known as the astronomical unit and the usual rounded (for simplification count) to 150 million km.
2. Proxima Centauri
Proxima Centauri is a red dwarf star which lies 4.2 light-years (3.97 × 1013 km) from Bumi.Bintang is located in the constellation of Centaurus. Proxima Centauri was discovered in 1915 by Robert Innes, Director of the Observatory at the African Union Selatan.Bintang this is the closest star to the Sun, although it is too faint to be seen without the use of tools.
3. Alpha Centauri
Alpha Centauri is the closest star system of our solar system, with a distance of 4.2 to 4.4 light years. Because it's a lot of science fiction to imagine one day humans will go there.
4. Barnard's star
Barnard's star is the closest star in Ophiuchus.
5. Star Wolf 359
Wolf 359 is a red dwarf star located in the constellation Leo, near ekliptika.Berada at a distance of about 7.8 light years from this Bumi.Bintang has an apparent magnitude of 13.5 and can only be seen with a large telescope.
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