2011-02-11

Terminator

The terminator is the imaginary line that forms the boundary between the day side and the night side of a planet. In reality, it is a bit fuzzy depending on surface topology and atmospheric properties. The day/night terminator on Earth is an approximately circular line with radius approximately the same as that of Earth. There are a bunch of factors that drive exactly where the line falls and what shape it is.

The 1984 science fiction action film by James Cameron is not about nearly circular lines forming the boundaries of shadows on planetary surfaces.



1 comment:

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