Santos et al. (2004) report the logarithm of the abundance ratio of iron to hydrogen, , to be 0.12 dex, whereas Cenarro et al. (2007) published a value of –0.15 dex.
Santos e col. (no 2004) informaron do logaritmo da taxa da abundancia de ferro a hidróxeno, , cun valor de 0,12 dex, mentres que Cenarro e col. (no 2007) publicaron un valor de -0,15 dex.