What would be the absolute magnitude of a main sequence star with a temp. of 25,000 degrees Kelvin? Plz help I'm tired and want to go to bed?

2 Answers

  • 4 weeks ago

    The luminosity of a particular star is proportional to the fourth power

    of the ratio between that star's temperature and the temperature of

    the sun.

    Ts = temperature of the sun = 6,000 K

    Tx = temperature of main sequence star = 25,000 K

    Ls = luminosity of the sun = 1

    Lx = luminosity of main sequence star = to be determined

    Lx = (Tx / Ts)^4 = (25,000 K / 6,000 K)^4 = 4.166666667 ^4 = 301

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  • Anonymous
    1 month ago

    Literally, I googled this and found an HR chart showing the absolute luminosity versus temperature which is also I bet in your textbook.  Maybe you need an easier course, like 'future careers in fast food'.

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