Neap and spring tides,diagram

Numéro d’image : 11600025
Neap and spring tides,diagram
Neap and spring tides. Diagram showing the Sun (yellow) and Moon (grey) and their alignments to produce spring (high) and neap (low) tides (both green) on Earth. Tidal effects act to stretch a spherical body into an ovoid shape,and they act along the line connecting the centre of the two celestial bodies. Despite the Sun's greater distance,its large mass means that its tidal force on the Earth is about half that of the Moon,and so the Sun appreciably affects the tides. At first and third quarter (top),the Sun and Moon oppose each other to produce the neap tides. At new and full Moon (bottom),they combine for the spring tides
Licence : Droits gérés
Crédit: Science Photo Library / Hks, Gary
Taille de l’image : 4679 px × 3744 px
Model Release : Non requis
Property Release : Non requis
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