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File:Solar evolution (English).svg


English: This graph shows the evolution of the Sun's luminosity, radius and effective temperature compared to the present Sun. The left edge represents the zero-age main sequence, while the right is the start of the red giant phase.
Date 30 September 2011
Source Own work, based on figure 1, Ribas, Ignasi (2010), "The Sun and stars as the primary energy input in planetary atmospheres", Solar and Stellar Variability: Impact on Earth and Planets, Proceedings of the International Astronomical Union, IAU Symposium, 264, pp. 3–18, en:Bibcode 2010IAUS..264....3R 
Author RJHall


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