VLT/NACO astrometry of the HR?8799 planetary system?

Authors: C. Bergfors, W. Brandner, M. Janson, R. Köhler and T. Henning.<br />Astronomy & Astrophysics Vol. 528 , page A134<br />Published online: 15/03/2011<br />
Keywords:
planetary systems ; stars: individual: HR 8799.

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