Eclipse of the Sun Small 320×88 Medium 640×175 Large 1024×280 Download Tiff Original 11012×3015 | (31.7 MB) Description Eclipse of the Sun. S=Sun, E=Earth, M=Moon Keywords penumbra, total solar eclipse, umbra Galleries Astronomy Source: Editor in Chief Charles Morris Winston's Cumulative Loose-Leaf Encyclopedia (Philadelphia, PA: The John C. Winston Company, 1918)