The Praesepe Open Cluster and the Galactic Distance Scale

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

Updated proper motions for 328 probable members of the Praesepe are used
to determine the distance to this open cluster by Hertzsprung's
geometric method. The cluster distance was found to be r = 171 +/-15 pc,
which corresponds to the distance modulus V_0-M_V = 6.16 +/-0.19 mag.
The distance scale for open clusters is discussed.

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