Ray system of Tycho lunar crater, 1900 - Stock Image - C048/5366

Ray system of Tycho lunar crater, 1900. The Tycho crater (upper right) is 86 kilometres across, with the rays formed by ejecta from this major impact event that took place 108 million years ago. ROYAL ASTRONOMICAL SOCIETY/SCIENCE PHOTO LIBRARY

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A guide to the Moon's Tycho Crater - BBC Sky at Night Magazine

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IMAGE RELEASE: Moon's Tycho Crater Revealed in Intricate Detail