This is a page dedicated to the wobbling of the Moon, otherwise known as Libration, that allows us to see more than 50% of its surface, despite the fact that it has a dark side and always shows us the same face.
The libration of the Moon describes its apparent movement on the N-S and E-W axis:
This wobbling exposes to view an extra 9% of the Moon’s surface. Craters and maria in those areas are known as libration features. To photograph them the following conditions must be met:
1. Maximum libration; 2. Moon above horizon; 3. Sufficient elongation from Sun; 4. Favourable phase; 5. Clear sky.
Sufficient to say that these are cumulative and that the last one alone eliminates half of the nights.
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