Fig5_9 Sun's Luminosity

Fig5_9 Sun

Fig. 5.9 . In about eight billion years the Sun will become much brighter (top) and larger (bottom). The time scale has been expanded near the end of the Sunís life to show relatively rapid changes. (Courtesy of I-Juliana Sackmann and Arnold I. Boothroyd.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University