• Don SpainEmail author
Part of the Astronomer's Pocket Field Guide book series (ASTROPOC)


Copernicus (56 miles) is one of the greatest showpiece formations on the lunar surface. It is like Tycho in age, probably a little over 1 billion years, making it a youngster when compared to most other craters. It makes its appearance 2 days after first quarter. Careful examination of its rim shows that its shape is almost hexagonal. From the bottom of its flat floor to the top of its rim the heavily terraced walls rise over two miles. There are three main central peaks, the highest reaching up 3/4 of a mile. The top of the rim is about ½ mile above the surrounding plain. Spreading outward from the base of the walls are ridges in a radial pattern. This one is not to be missed. Copernicus is to lunar observers what the Andromeda Galaxy is to deep sky observers. Observe it with any and all telescopes. It will never disappoint you.

Fauth (7 miles) is conjoined with a 6 mile crater directly below it. Fauth is a little over a mile deep and its little brother is just under a mile. Together they look like a keyhole.


Careful Examination Central Peak Lunar Surface Radial Pattern Flat Floor 
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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Louisville Astronomical SocietyLouisvilleUSA

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