About Evolution of the sun
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. It is by far the most important source of energy for life on Earth. The.
The English word sun developed fromsunne. Cognates appear in other , including The.
The Sun is athat makes up about 99.86% of the mass of the Solar System.It has anof +4.83, estimated to be brighter than about 85% of the stars in the , most of whi.
The Sun consists mainly of the elementsand . At this time in the Sun's life, they account for 74.9% and 23.8%, respectively, of the mass of the Sun in the photosphere.All heavier elements, called.
The core of the Sun extends from the center to about 20–25% of the solar radius.It has a density of up to 150 g/cm(about 150 times the density of water) and a temperature of close to 15.7 million(K).By con.
The Sun has athat varies across its surface. Its polar field is 1–2(0.0001–0.0002 ), whereas the field is typically 3,000 gauss (0.3 T) in features on the Sun calledand 10–100 gau.
The Sun today is roughly halfway through the main-sequence portion of its life. It has not changed dramatically in over four billionyears and will remain fairly stable for about five billion more. However, after hydrogen fusion in it.
The Sun has eight known planets orbiting it. This includes four(, , , and ), two( and ), and two( and ). The Solar System als.
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6 FAQs about [Evolution of the sun]
How will the evolution of the sun continue?
The evolution of the Sun should continue on the same path as that taken by most stars. As the core hydrogen is used up, the nuclear burning will take place in a growing shell surrounding the exhausted core.
How long did the Sun last?
The Sun spent about 100,000 years as a collapsing protostar before temperature and pressures in the interior ignited fusion at its core. The Sun started as a T Tauri star – a wildly active star that blasted out an intense solar wind. And just a few million years later, it settled down into its current form. The life cycle of the Sun had begun.
What is the life cycle of the Sun?
The life cycle of the Sun had begun. The Sun, like most stars in the Universe, is on the main sequence stage of its life, during which nuclear fusion reactions in its core fuse hydrogen into helium. Every second, 600 million tons of matter are converted into neutrinos, solar radiation, and roughly 4 x 10 27 Watts of energy.
How old is the Sun?
While seemingly eternal, the Sun is a giant ball of burning gas currently 4.5 billion years old that will continue for about 8 billion more before slowly fading away. It was born out of the gas and dust of previous stars, collecting mass until nuclear fusion could ignite, creating the core.
How did the Sun become a planet?
The ball at the center would eventually form the Sun, while the disk of material would form the planets. The Sun spent about 100,000 years as a collapsing protostar before temperature and pressures in the interior ignited fusion at its core. The Sun started as a T Tauri star – a wildly active star that blasted out an intense solar wind.
How long has the Sun been shining?
Sun - Evolution, Structure, Radiation: The Sun has been shining for 4.6 billion years. Considerable hydrogen has been converted to helium in the core, where the burning is most rapid. The helium remains there, where it absorbs radiation more readily than hydrogen. This raises the central temperature and increases the brightness.