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Published online by Cambridge University Press: 14 August 2015
About 3/4 of the sky were searched spectroscopically for stars whose ultraviolet spectra (3640–4100 Å) match that of the Sun, at 20 Å resolution. Down to the limit of the BSC, only two were found: HR 7504 and HR 2290. No G2 V star matches the Sun. Stars that do match have (B-V) = 0m.66. The search has a bearing on effective temperatures of G dwarfs and on metal-abundances relative to the Sun.