The color-magnitude diagram is similar to the HRD. <br>
Here, however, instead of spectral types (temperature class), BV (in the blue brightness - brightness in the visual field) mapped. This looks a little different from the chart, the typical main sequence (V), however, continue to see well. Similarly, the branch of the giant stars (III).
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In the file 'sterne2.txt' in the program folder contains the names of the stars that appear in the chart. This file you can edit.