 The implication is that the star formed at a time and place where there had not been enough time for any previous generation of stars to have produced s-process elements, though there was r-process material present.The spectral type of HD 122563 is one of characteristics which initially indicated its peculiarity.In the Bright Star Catalogue its spectral type is given as F8 IV, but its color index indicates a surface temperature much cooler than an F8 star should be.