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2023 Austria Uncharted Universe - The Neutron Star 20 Euro Silver Coin
AU$180.00
Stock: Available
Product Code: 23S3975
The series "The Uncharted Universe" of the Austrian Mint is dedicated to physical-astronomical phenomena shaped in a unique and extraordinary form. The third release features the Neutron Star. This fascinating phenomenon arises from supernova explosions, when a massive star collapses and the overwhelming gravity compresses the nucleus so strongly that protons and electrons are converted into neutrons and neutrinos. The neutron star can thus be understood as a gigantic atomic nucleus with a radius of 10 to 12 km.
The motive of the uniquely shaped coin shows a neutron star in color. To represent it in a simplified plastic way, the coin was provided with a hemisphere that curves outward on one side and inward on the other. The surrounding area shows the magnetic field of the rotating neutron star as well as stylized stars. The upper edge of the coin features the inscription "NEUTRONENSTERN". The reverse shows the "crust" and the "core" of the neutron star as well as the inscription "KREBSPULSAR" - the name of a neutron star that was formed from a supernova in the year 1054. "1.4 MO" refers to its solar mass, while "30rps" refers to its rotational speed per second. Its radius is given as "r~10km". The denomination "20 EURO" and the inscription "REPUBLIK ÖSTERREICH" are also part of the design. The Euro silver coin Neutron Star in proof quality is delivered in the original box including a certificate of authenticity.
| Country | Austria |
| Denomination | 20 EURO |
| Year of issue | 2023 |
| Metal | Silver |
| Quality | Proof |
| Mintage | 30.000 |
| Diameter | 34,00 |
| Mint | Austrian Mint |
| Series | The Uncharted Universe |
| Gross weight | 22,42 |
| Fineness | 925 |
| Delivery | In original box with certificate of authenticity |