APOD: 2006 February 16 - The Colour of the Moon
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C. 1909 THE MOON Original Antique Print Lithograph Astronomy
What Lies Beneath, Air & Space Magazine
Copernicus crater Bob Moler's Ephemeris Blog
Lunar Impact Crater Copernicus on 05-10-2014 - Galactic Images
Astronomy Picture of the Day Tycho and Copernicus: Lunar Ray
A Beginner's Guide to Imaging the Moon
Crater Copernicus
IMAGE RELEASE: Moon's Tycho Crater Revealed in Intricate Detail - National Radio Astronomy Observatory
Astronomy Picture of the Day Tycho and Copernicus: Lunar Ray
Mountain in a crater! – Tycho
A guide to the moon, Astronomy
How to observe and photograph lunar ray ejecta systems - BBC Sky