Horst Thiel
Rated 5 out of 5

Easter walk in the starry sky

Wed, 6.04.2022
Horst Thiel
The Easter sky with its planets and constellations - Planetarium show
On 20 March is the beginning of spring, and on the Sunday after the spring full moon we celebrate Easter. But when the calendar became so inaccurate in the Middle Ages that no Lent was actually possible, Pope Gregory XIII had an observatory built in the Vatican. His astronomers succeeded in aligning the calendar with the position of the sun to the minute using a very simple method without telescopes, which had not yet been invented at the time. Thus, in October 1582, eleven days had to be skipped. Without the calendar reform, we would not celebrate Easter in 2022 until 28 April. In the observatory there was nothing other than a pinhole camera (camera obscura), and I show with photos, taken at my home, that everyone has such a pinhole camera in the flat when the sun shines through shutter slits.

Book event

  • View from above of the replica of the inner stone circle
    Stonehenge - Of people and landscapes
    Fri, 27.05.
    18:30 - 19:30
    The story of Europe's most famous archaeological monument in its uniquely preserved prehistoric environment
  • Maria Sibylla Merian - Female power around 1700
    Sat, 28.05.
    18:00 - 19:30
    Welcome to the wondrous world of Maria Sibylla Merian (1647-1717): Plants, caterpillars and butterflies from Europe and South America under the magnifying glass
  • Roofs of Cologne Cathedral - the secret life of the cathedral
    Mon, 30.05.
    11:00 - 12:00
    Welcome online to a visit to the roof spaces of Cologne Cathedral.

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