20 Euros Supernova
2024 year| Silver (.925) | 22.42 g | 34 mm |
| Issuer | Austria |
|---|---|
| Issuing bank | National Bank of Austria (Österreichische Nationalbank) |
| Period | Second Republic (1945-date) |
| Type | Non-circulating coin |
| Year | 2024 |
| Value | 20 Euros 20 EUR = USD 22 |
| Currency | Euro (2002-date) |
| Composition | Silver (.925) |
| Weight | 22.42 g |
| Diameter | 34 mm |
| Shape | Round (irregular) |
| Technique | Coloured, Milled |
| Orientation | Medal alignment ↑↑ |
| Updated | 2024-10-04 |
| Numista | N#416351 |
|---|---|
| Rarity index | 70% |
Reverse
It features a coloured illustration of the Crab Nebula, based on an image taken by the Hubble Space Telescope.
Script: Latin
Lettering: SUPERNOVA
Translation: Supernova
Designer: Helmut Andexlinger
Edge
Plain
Comment
There are thought to be up to one billion neutron stars in the Milky Way. This figure is obtained by estimating the number of stars that have undergone a supernova explosion, a spectacular explosion of a massive star. Combined with gravitational collapse, this creates a compact and super-dense object known as a neutron star. After black holes, neutron stars are the densest stellar objects in the universe. Even denser than atomic nuclei, which is a good way to think of them, neutron stars are heavier than the Sun itself: a teaspoonful of neutron star would weigh as much as 1,000 Cheops pyramids. Neutron stars can rotate at very high speed – up to 700 revolutions per second – and have a magnetic field 12 to 15 orders of magnitude stronger than that of the Earth, which is a thousand to a million times stronger than the strongest man-made magnetic fields ever produced.
Interesting fact
The 2024 Austrian Supernova 20 Euro silver coin features a unique design that changes color under different lighting conditions, creating a mesmerizing effect that simulates the explosion of a supernova.
Price
| Date | Mintage | VG | F | VF | XF | AU | UNC |
|---|---|---|---|---|---|---|---|
| 2024 | 30000 | - | - | - | - | - | - |
Values in the table are based on evaluations by sales realized on Internet platforms. They serve as an indication only for 20 Euros (Supernova) 2024 coin.
