When my daughter visited Prague last summer I was very interested to see her pictures of the Prague astronomical clock and was looking forward to seeing it. The oldest part of the clock was made in 1410. It has been added to and restored over the centuries. It is situated on the wall of the Old Town City Hall on the tower that I showed last week.
The top of the clock has windows that open each hour and a parade of 12 wooden figures of the apostles appear. When they finish the cockerel crows and then the bell rings the hour.
The rather macabre characters around the astronomical clock also move. The astronomical dial depicts the medieval idea of the Universe. The dials show 4 different times; Old Czech Time, Central European time, Babylonian time where the length of an hour differs according to the season and Sidereal time. This clock is the only one in the world able to measure Babylonian time.
The most modern part of the clock is at the bottom and is the Calendar clock. The centre shows the symbol of Old Prague town. Every single date is itemised around the very edge of the clock with the current day marked at the top. Further in are symbols of each zodiac sign and each calendar month.
So much to read in one clock!
Shall I be naughty and show you another picture? This is the view of the clock by night.