URANUS Niob Solar System Silver Coin 2$ Palau 2018

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This beautiful Silver coin is the second release in the new exciting “Solar System” series and features Uranus, the coldest planetary atmosphere in the Solar System, with its unique atmosphere. The coin features a Niobium insert has a Proof quality and come in an elegant case, along with the Certificate of Authenticity. Limited mintage to 3.000 pieces worldwide.

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69.95 €

99.95 €

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Country Palau
Year 2018
Face Value 2 Dollars
Metal Silver
Fineness (purity) 999/1000
Weight (g) 15
Diameter (mm) 30
Quality Proof
Mintage (pcs) 3.000
Certificate (COA) Yes
Presentation case (box) Yes
More info

Uranus is the seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. Uranus is similar in composition to Neptune, and both have bulk chemical compositions which differ from that of the larger gas giants Jupiter and Saturn. For this reason, scientists often classify Uranus and Neptune as "ice giants" to distinguish them from the gas giants. Uranus's atmosphere is similar to Jupiter's and Saturn's in its primary composition of hydrogen and helium, but it contains more "ices" such as water, ammonia, and methane, along with traces of other hydrocarbons. It is the coldest planetary atmosphere in the Solar System, with a minimum temperature of 49 K (−224 °C; −371 °F), and has a complex, layered cloud structure with water thought to make up the lowest clouds and methane the uppermost layer of clouds. The interior of Uranus is mainly composed of ices and rock.


The reverse of the coin features Uranus and its beautiful rings divided by the niobium core insert. On top of the coin’s reverse, the inscription: “URANUS” – the name of the coin. On the bottom of the reverse, the inscription: “SOLAR SYSTEM” – the name of the series. The obverse of the coin features an illustration of the universe and of the planets in orbit and the Palau Coat of Arms. On top of the coin’s obverse, the inscriptions: “REPUBLIC OF PALAU” - the issue country and “2018” – the year of issue. On the bottom of the obverse, the inscription: “2 DOLLARS” - the face value.