Astronomy Picture of the Day Tycho and Copernicus: Lunar Ray

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

The Classic Moon - Page 9 - Lunar Observing and Imaging - Cloudy Nights

The eleven and half day old Waxing Gibbous Moon ~ - My Stardust

IMAGE RELEASE: Moon's Tycho Crater Revealed in Intricate Detail - National Radio Astronomy Observatory

Observation of the MOON - part I

Observation of the MOON - part I

How to observe and photograph lunar ray ejecta systems - BBC Sky

Tycho Crater and its 1500 kilometer rays of destruction in true

The Oikofuge: New Year / Resolution