The inital idea was to observe the sky outside in a location called "Los llanos" but unfortunately it was raining the whole day. So we decided to prepare an observation in the library. Obviously it wasn't the same but we made a planisphery, we used Celestia app and with a small planetary and with the explanations of Zbigniew Budzik (polish teacher) we had the opportunity to observe the sky in Alcalá in this moment. Fantastic!!