Talk:Gamma Cephei

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Metallicity: 89%-168%[edit]

How can a star possibly be made out of more than 100% metal? 89.15.238.20 (talk) 21:32, 28 October 2011 (UTC)

That's the abundance of metals (i.e. non-hydrogen/helium atoms) in the Star relative to the abundance of metals in the Sun. The abundance in the Sun is roughly 1.69%, so a metallicity of 168% solar means 1.69 × 1.68 = 2.84%. Regards, RJH (talk) 00:02, 8 January 2012 (UTC)