Astronomers term "metals" those elements with higher atomic numbers than helium. The metallicity of Vega's photo sphere is only about 32% of the abundance of heavy elements in the Sun's atmosphere.[note 3] (Compare this, for example, to a three-fold metallicity abundance in the similar star Sirius as compared to the Sun.) For comparison, the Sun has an abundance of elements heavier than helium of about ZSol = 0.0172 ± 0.002.[67] Thus, in terms of abundances, only about 0.54% of Vega consists of elements heavier than helium. Vega's spectral class is A0V, making it a blue-tinged main sequence star that is fusing hydrogen to helium in its core. https://en.wikipedia.org/wiki/Vega Location:RA 18° 36' 56" | Dec 38° 47.022'
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