The young active star SAO 51891 (V383 Lacertae)
The young active star SAO 51891 (V383 Lacertae)
<i>Aims. <i/>The aim of this work is to investigate the surface inhomogeneities of a young, late-type star, SAO 51891, at different atmospheric levels, from the photosphere to the upper chromosphere, analyzing contemporaneous optical high-resolution spectra and broad-band photometry.<i>Methods. <i/>The full spectral range of FOCES@CAHA (<i>R<i/> 40 000) is used to …