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20 Euros Black Hole
| Issuer | Austrian Mint (Münze Österreich) |
|---|---|
| Year | 2022 |
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| Currency | Euro (2002-date) |
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| Obverse description | The obverse presents a highly detailed scientific rendering of the black hole Cygnus X-1, depicted as a vortex of radiating concentric rings and gravitational lensing lines converging toward a central singularity point. The composition is rendered in high relief, evoking the warping of spacetime around the event horizon. The legend REPUBLIK ÖSTERREICH and the date 2022 arc along the upper periphery, while the denomination 20 EURO appears along the lower field. The inscriptions SINGULARITÄT, 15 M CYGNUS X-1, and EREIGNISHORIZONT are integrated into the design field, identifying key astrophysical features of the subject. |
|---|---|
| Obverse script | Latin |
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| Reverse description | The reverse features a vivid, color-treated depiction of a black hole accretion disk, rendered in deep tones of amber, gold, and violet against a dark cosmic field scattered with star symbols and luminous particles. At the centre, a convex dome of polished silver represents the black hole itself, within which a silhouette of a swan — referencing the Cygnus X-1 binary system — is subtly visible. The surrounding accretion disk glows with graduated hues, conveying the extreme energy and radiation of the astrophysical phenomenon. The legend SCHWARZES LOCH arcs along the upper border in raised Latin lettering against the dark field. |
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