It is a pleasure to thank H. Lindgren and Bo Reipurth for an important observation of NGC 5822 #312 in February 1990. We are also grateful to B. Nordström for obtaining measurements for several stars of this programme. The work of JCM and MM has been supported by continuous grants from the Swiss National Foundation for Scientific Research (FNRS), while JA thanks the Danish Natural Science Research Council, the Carlsberg Foundation, and the Danish Board for Astronomical Research for support of this research.
© European Southern Observatory (ESO) 1997
Online publication: July 3, 1998