ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY
Drawings of Venus, made in 1882 by the British astronomer William Frederick Denning (1848-1931), and published in La Planete Venus by Camille Flammarion (1842–1925). This is a crescent Venus, with an attempt made here to show the change in the appearance of Venus over several days as the crescent waxes (from left to right). At the time, it was not known what the surface of Venus looked like. Now, it is known that Venus is covered in clouds and surface features are not visible.
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