Greece issued a 10 Euro face value silver coin to celebrate the International Year of Astronomy.
The obverse shows a spiral galaxy and some stylized stars. Legend below is: "2009 ΔΙΕΘΝΕΣ ΕΤΟΣ ΑΣΤΡΟΝΟΜΊΑΣ", i. e. 2009 International Year of Astronomy.
The reverse shows some stars. The legend above is: "ΕΛΛΗΝΙΚΗ ΔΗΜΟΚΡΑΤΙΑ", i. e. Official name of Greece. Below the face value 10 ΕΥΡΩ.