How much is the mass of the sun losing every second?

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SUMMARY

The discussion centers on calculating the mass loss of the Sun, which outputs energy at a rate of 4 x 10^26 Watts. The key formula utilized is Einstein's equation E = mc², which establishes the relationship between mass and energy. Participants express concern about the Sun's longevity and its implications for future generations. The power output is assumed to remain constant for the purpose of these calculations.

PREREQUISITES
  • Understanding of Einstein's equation E = mc²
  • Basic knowledge of power and energy units (Watts and Joules)
  • Familiarity with astrophysics concepts related to stellar evolution
  • Ability to perform basic algebraic calculations
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  • Research the implications of stellar mass loss on solar system dynamics
  • Learn about the lifecycle of stars, particularly the Sun
  • Explore advanced astrophysics topics such as thermonuclear fusion
  • Investigate the historical variations in the Sun's luminosity
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Astronomy enthusiasts, astrophysicists, educators, and anyone interested in the long-term fate of the Sun and its impact on Earth.

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My friend told me that the sun is going to get smaller and smaller every year because it's getting used up? I've read that the power output is 4 x 10^26 Watts. How can i figure out how much mass it's losing a second? because then I will be able to find how long the sun will be able to shine on me and my children (hopefully).

thanks.

I don't really know how to attempt this problem because it's really random and i don't know any formulas for power.

merci.
 
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nvm i think E=mc^2 will help me out thanks. wow I don't think my children will live to see the sun. sucks for them i am going to take lots of pictures i guess ..
 
1 watt = 1 joule per second

Mass is converted into energy through the equation

E = mc^2.

But is the power quoted going to remain constant throughout all the time t to be calculated?
 

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