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Space Phenomena Supernova 1500 CFA...
Space Phenomena Supernova 1500 CFA Francs 3oz .999 pure silver coin.
This beautiful coin features a notable astonomical event, the supernova. The coin is partially coloured and has gorgeous colour effects.
Extremely low mintage of 999 pieces worldwide. With luxury box and COA.
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|Country :||Burkina Faso|
|Face Value :||1,500 CFA Francs|
|Metal :||.999 Fine silver|
|Weight :||3 oz|
|Size :||55.00 mm|
|Quality :||Brilliant uncirculated (BU)|
|Mintage :||Only 999 pcs. worldwide|
|Certificate of Authenticity :||Yes|
|Original ETUI box/case :||Yes|
A supernova is an astronomical event that occurs during the last stellar evolutionary stages of a massive star's life, whose dramatic and catastrophic destruction is marked by one final titanic explosion. For a short time, this causes the sudden appearance of a 'new' bright star, before slowly fading from sight over several weeks or months.
Only three Milky Way naked-eye supernova events have been observed during the last thousand years, though many have been telescopically seen in other galaxies. The most recent directly observed supernova in the Milky Way was Kepler's Supernova in 1604, but remnants of two more recent supernovae have been found retrospectively. Statistical observations of supernovae in other galaxies suggest they should occur on average about three times every century in the Milky Way, and that any galactic supernova would almost certainly be observable in modern astronomical equipment.
Supernovae are more energetic than novae. In Latin, nova means "new", referring astronomically to what appears to be a temporary new bright star. Adding the prefix "super-" distinguishes supernovae from ordinary novae, which are far less luminous. The word supernova was coined by Walter Baade and Fritz Zwicky in 1931.
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