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20 Euros Neutron star
| Issuer | Austrian Mint (Münze Österreich) |
|---|---|
| Year | 2023 |
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| Composition | Log in to see details |
| Weight | 22.42 g |
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| Obverse description | The obverse features a cross-sectional schematic representation of a neutron star's interior structure, with the German legends 'KRUSTE' (crust) and 'KERN' (core) inscribed within the respective layers of the coin's incuse hemisphere at center. The surrounding flat field bears the inscription 'REPUBLIK OESTERREICH' identifying the issuer, the denomination '20 EURO', and the date '2023'. Additional scientific data are inscribed in the field: 'r ~ 10 km' denoting the star's approximate radius, '30rps' indicating its rotation speed of 30 revolutions per second, and '1,4 M ⊚' referencing its solar mass. The legend 'KREBSPULSAR' (Crab Pulsar) identifies the specific neutron star depicted, which originated from a supernova event recorded in the year 1054 CE. |
|---|---|
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| Obverse lettering | 2023 REPUBLIK OESTERREICH 20 EURO KRUSTE KERN r ~ 10 km 30rps 1,4 M ⊚ KREBSPULSAR (Translation: 2023 Republic of Austria 20 Euro Crust Core Radius ~ 10 kilometers 30 revolutions per second, 1.4 solar masses Crab Pulsar) |
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| Mintage | 2023 - Proof - 30,000 |
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