SIMBAD references

The analysis of eighteen high resolution SWP spectra of the HgMn star HD 78316 (κ Cnc) recorded by the International Ultraviolet Explorer reveals that the far-ultraviolet flux of this star remained constant over the various observations with IUE. The TESS lightcurve of HD 78316 reveals a double-wave structure with a rotational period of about 6.25 days. The absence of far-ultraviolet variability and the reproducibility of the brightness in the V band during most IUE observations do not support the presence of large chemical gradients over the surface of κ Cnc at the time of the IUE observations.