NGC 6738: Not a real open cluster

@article{Boeche2003NGC6N,
  title={NGC 6738: Not a real open cluster},
  author={Corrado Boeche and Roberto Barbon and Arne Anthon Henden and U. Munari and P. Agnolin},
  journal={Astronomy and Astrophysics},
  year={2003},
  volume={406},
  pages={893-898}
}
A photometric, astrometric and spectroscopic investigation of the poorly studied open cluster NGC 6738 has been performed in order to ascertain its real nature. NGC 6738 is definitely not a physical stellar ensemble: photometry does not show a defined mean sequence, proper motions and radial velocities are randomly distributed, spectro-photometric parallaxes range between 10 and 1600 pc, and the apparent luminosity function is identical to that of the surrounding field. NGC 6738 therefore… 
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