Elsevier

Chinese Astronomy and Astrophysics

Volume 21, Issue 4, October–December 1997, Pages 433-437
Chinese Astronomy and Astrophysics

Maximum likelihood estimation of the mean parallax and kinematic parameters of the Pleiades

https://doi.org/10.1016/S0275-1062(97)00059-3Get rights and content

Abstract

A simultaneous, maximum-likelihood determination of the distance and kinematic parameters of the Pleiades is made. The results are: distance of the cluster d = 135.56 ± 0.72 pc, dispersion σd = 7.66 ± 0.80 pc; space velocity V = 25.94 ± 0.13 km/s, dispersion σv = 0.58 ± 0.09 km/s coordinates of the convergent point A = 101.95° ± 0.47°, D = −41.36° ± 0.29°.

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