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  1. #3
    Administrator waldronate's Avatar
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    Projections deal with transforming one surface to another. In the case of common map projections, it's projecting the surface of a globe (sphere or ellipsoid, depending on your accuracy needs) onto a flat plane. The size is irrelevant, that's just the scaling factor; what's important is the shapes involved. We can easily draw a Mercator projection of the Moon, Earth, Jupiter, the Sun, or the entire apparent globe of the heavens with equal ease.
    Last edited by waldronate; 03-05-2013 at 09:50 AM.

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