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Fig. 10
CMDs of stars ordered by distance. Symbols are: (+) stars from 0 to 2 kpc, (■) for 2–3 kpc, (°) for 3–4 kpc, (▵ ) for 4–5 kpc and (★) stars beyond 5 kpc. Upper panel, all stars above B5- spectral types in Trumpler 27 region. Lower panel, idem above for stars outside.
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