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5 Mark Johannes Kepler
| Issuer | State Mint of the German Democratic Republic (Münze der DDR) |
|---|---|
| Year | 1971 |
| Type | Non-circulating coin |
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|---|---|
| Obverse script | Latin |
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| Reverse description | The reverse features an allegorical astronomical design illustrating two of Kepler's laws of planetary motion. An elliptical orbital path is shown with the Sun positioned off-center at one focus of the ellipse, representing the First Law. The ellipse is divided into sixteen sectors of equal area radiating from the Sun, embodying the Second Law, which states that a planet sweeps equal areas in equal times. The astronomer's name and life dates appear as the legend JOHANNES 1571 1630 KEPLER arranged around the design. |
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| Reverse lettering | JOHANNES 1571 1630 KEPLER |
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