The low mass X-ray binary X1822-371 is one of the brightest LMXBs in the optical and it is also the prototypical accretion disc corona source. In spite of it has been widely studied, reliable constraints to the stellar masses have only been set in the last 5 years thanks to the detection of 0.59s X-ray pulses and fluorescent emission lines arising

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The Gran Telescopio Canarias (GTC) is a 10.4,m segmented telescope that is about to have first light. Science operation will begin in about one year time. In order to ensure that the data coming from the GTC have the required quality and homogeneity and to foster the re-utilization of the data archive, a strategy for an adequate calibration of the

After the successful launch of the CoRoT (COnvection, ROtation and planetary Transits) satellite we are living in a new era of asteroseismology and extrasolar planet search. Regarding asteroseismology, the space photometry is simultaneously complemented by high-resolution spectroscopy and multicolour photometry from ground. Preliminary results on

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