Coordinated observations of a large impulsive flare on UV Ceti The characteristics of the major flare observed on UV Ceti on Decemmber1985 at 01:26 UT during an international observing campaign aredescribed. X-ray observations were obtained with Exosat in the 0.06-0.3keV bands and 1-6 keV bands; optical photometry was obtained in 11wavelength bands, and spectra were recorded in the wavelength range 3500to 7000 A. The results of the data analysis support the ImpulsiveExplosion Model proposed for stellar flares and disclose somedifferences with the solar case.
