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Low and high resolution spectra of IRAS 22568 + 6141 have been obtained. Physical parameters and abundances and flux densities are given for the object. The mass loss rate is the expected value for objects at the start of the evolution off the AGB. The elemental values of the object, its location in the H-R diagram, and its kinematical age indicate

A near-IR survey is conducted in order to penetrate the dust of the Galactic plane through the K window and study the flux from Rayleigh-Jeans tail emission in cool stellar sources. Small-scale NIR surveys are examined which cover the entire Galactic bulge and plane visible from the observation point. A total of 120 scans is reported, and source

Solar cycle variations on the power and frequencies of the low l p-mode solar acoustic oscillations are investigated using an extensive set of observations obtained at Observatorio del Teide (Izaña, Tenerife). The radial velocity of integrated sunlight has been monitored, by means of a resonant scattering spectrophotometer, at several epochs

Preliminary results are presented of spectroscopic analysis of ten young stars in OB associations using high resolution spectra and NLTE calculations. From the known distances the stellar masses are derived. The comparison with evolutionary tracks indicates a possible discrepancy between the masses and enhanced helium abundances derived from the

The measurement of frequencies, linewidths, and splittings of low degree solar p-modes is a difficult task due, firstly, to time scales involved and, secondly, to the spurious presence of side lobes when data is not collected continuously. However, a long set of observations have been obtained at Observatorio del Teide: a total of 52 months of data