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Moontanman last won the day on April 30

Moontanman had the most liked content!

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About Moontanman

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  • Birthday 01/23/1955

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  • Location
    South Eastern North Carolina
  • Interests
    I enjoy surf fishing, beach combing, scuba, aquariums, native fish breeding,
  • College Major/Degree
    some statistical analysis but no other higher education.
  • Favorite Area of Science
    Astrobiology, evoluntionary biology, space travel, nuclear power,
  • Biography
    I live near the ocean, I am a science junkie and just another bundle of ignorance trying learn.
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  1. I know it's lazy of me but can anyone give me a link to someplace I can get tables to determine the mass of a star vs it's brightness? 

    1. Show previous comments  3 more
    2. Janus


      For that range, you can use the estimate of  L/Ls = (M/Ms)^4,  where Ls is the luminosity of the Sun and Ms is the mass of the Sun.   75% the luminosity gives 93% the mass.

    3. StringJunky
    4. Moontanman


      Thanks @Janus, it surprised me how fast luminosity drops off with such a small decrease in mass. Can the life time of the star on the main sequence be figured from the mass being 93%? 

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