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Explorations an Introduction to Astronomy Thomas T. Arny | ||||||||
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Chapter 6, Figure 23
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6.23
The Sun's gravity creates tides too, though its effect is only about one-third that of the Moon. (A) The Sun and Moon each create tidal bulges on the Earth. When the Sun and Moon are in line, their tidal forces add together to make larger than normal tides. (B) When the Sun and Moon are at 90° as seen from Earth, their tidal bulges are at right angles and partially nullify each other, creating smaller than normal tidal changes.
