The luminosity of the Sun is 3.83 × 1026 W. This energy comes from fusion during which some matter is turned into energy. How many tons of matter are destroyed each second to maintain this luminosity? Bear in mind that 1 ton has a mass of 907 kg and that 1 W = 1 J/s. Amount of matter destroyed each second = _____ tons
Stellar evolution
We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.
Red Shift
It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.
The luminosity of the Sun is 3.83 × 1026 W. This energy comes from fusion during which some matter is turned into energy. How many tons of matter are destroyed each second to maintain this luminosity? Bear in mind that 1 ton has a mass of 907 kg and that 1 W = 1 J/s.
Amount of matter destroyed each second = _____ tons
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