—use the "display all measurements" option to show additional parameters.| dec=| appmag_v=0.03 }} | metal=[1]=−0.5 | mass=2.11| radius=2.26×2.78 | rotation=12.5 h| luminosity=37±3| temperature=9602±180| gravity=4.1±0.1 }}Vega ( or ; also known as ? Lyr / ? Lyrae / Alpha Lyrae) is the brightest star in the constellation Lyra, the fifth brightest star in the night sky and the second brightest star in the northern celestial hemisphere, after Arcturus. It is a relatively nearby star at only 25.3 light years from Earth, and, together with Arcturus and Sirius, one of the most luminous stars in the Sun's neighborhood.Vega has been extensively studied by astronomers, leading it to be termed, "arguably the next most important star in the sky after the Sun". Historically, Vega served as the pole star at about 12,000 BCE and will do so again at around 14,000 CE. Vega was the first star, other than the Sun, to have its photograph taken and the first t

Source: http://en.wikipedia.org/wiki/Vega
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