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Line 18: − − Vega was once the North Celestial Pole Star back in 12,000 BC and will be again in 14,000 AD, this is due to the [[precession of the equinoxes]], which causes the direction of the Earth's axis to rotate in a 25,770 year cycle. At present, the pole star is [[Polaris]].<ref>Roy, Archie E.; Clarke, David (2003). Astronomy: Principles and Practice. CRC Press. ISBN 0750309172.</ref>.
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==Vega in History==
==Vega in History==
Because Vega is one of the brightest stars in the night sky, it is well known and often referred to in [[human]] [[history]].
Because Vega is one of the brightest stars in the night sky, it is well known and often referred to in [[human]] [[history]].