A model atmosphere analysis of the metal-rich giant Iota Draconis.

Using model atmospheres and high dispersion ( A mm-') spectrograms observed with the isaac Newton telescope, the K2 iii giant Draconis was found to have twice the metal content of the solar composition giant E Virginis. Using a least squares procedure, the microturbulence was found to be intermediate (I 4 km s-1) between those of E Vir and the Sun. The temperature and surface gravity were solved for simultaneously using colours, Fe I lines, the absolute magnitude and the Fe and Ti ionization equilibria, and were found to be Te = 4530 K and g = 400 cm 2 Using these parameters, the abundances of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Y and Zr were derived. The hyperfine structure of some V and Co lines was allowed for explicitly.