Velocities and photometry in Trumpler 20
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https://b2find.eudat.eu/dataset/c7f06166-3efd-5aff-9e2b-3e009007eccc
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Trumpler 20 is an old open cluster (OC) located toward the Galactic centre, at about 3kpc from the Sun and ~7kpc from the Galactic centre. Its position makes this cluster...
