Gaia Data Release 1
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Fig. D.7


Proper motion charts for the Praesepe cluster. Top: unit weight residual proper motions. Green dots have first epoch Tycho-2 data, the dark blue dots have Hipparcos first epoch 5-parameter solutions. The concentric circles represent 1–3σsu levels. Bottom: actual proper motion distribution, where the colour indicate the difference from the cluster parallax in su units.

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