Denomination: CZK 200
Material: Silver
Mint Quality: Proof
Composition: 925 Ag 75 Cu
Weight: 13 g
Dimensions: 31 mm
Mint: Czech Mint, a.s.
Issued by: Czech National Bank
Date of Issue: 6 December 2017
Mintage: Proof – 10,400 pcs, BU – 5,400 pcs
Designer: Josef Oplištil
The obverse of the two-hundred-crown coin features, to the right of the centre of the coin field, the heraldic lion from the Great Coat of Arms of the Czech Republic. In the left part of the coin, the lion is mirrored with a symbolic highlighting of the Leo constellation and its name "LEO" above the lion's head. Both parts of the coin are connected by an orbit with planet Earth.
Around the circumference of the coin, in an open legend, is the denomination with the currency abbreviation "200 Kč" and the name of the state "ČESKÁ REPUBLIKA". The Czech Mint mark, consisting of the letters "Č" and "M", is placed in the centre of planet Earth.
The reverse of the two-hundred-crown coin is dominated by a depiction of the Sun, at the centre of which is the emblem of the Czech Astronomical Society with the years "1917 – 2017". Along the outer circumference of the sun's rays, an orbit with planet Earth is depicted. Around the circumference of the coin, the legend reads "ZALOŽENÍ ČESKÉ ASTRONOMICKÉ SPOLEČNOSTI" (Founding of the Czech Astronomical Society).
The initials of the coin's designer MgA. Josef Oplištil, consisting of the conjoined letters "J" and "O", are placed in the centre of planet Earth.
Each coin is supplied with a black catalogue card featuring a description of the coin and its embossed depiction.