In the Hertzsprung-Russell diagram, all the stars are registered in the database.
Here you can see a direct relationship between luminosity and mass and also diameter of a star.
The stars are in 8 luminosity classes (life cycles) divided by Ia to VII, which can be read with reference to the evolution of a star.
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The brown dwarfs with spectral types L, T and Y are also in the chart below the red dwarfs.
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A few facts from O to M stars: <br>
Surface temperature: 200000-2500 Kelvin <br>
Luminosity: 5 million times the solar luminosity to 0.0000008 <br>
Weight: 100 to 0.07 solar masses <br>
Diameter: 1000 to 0.07 solar diameter <br>
Age: <br> few million to 200 billion years
Final stage: black hole, neutron star or white dwarf star (VII)
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In the file 'sterne2.txt' in the program folder contains the names of the stars that appear in the chart. You can edit this file.