Interferometric observations of the Mira star o Ceti with the VLTI/VINCI instrument in the ne

We present K-band commissioning observations of the Mira star prototype o Cet nobtained at the ESO Very Large Telescope Interferometer (VLTI) with the VINCI ninstrument and two siderostats. The observations were carried out between 2001 nOctober and December, in 2002 January and December, and in 2003 January. nRosseland angular radii are derived from the mea..