Nebulosa is a project on stars, realized in view of the anniversary of Astronomy. The laboratory aims to realize a light drawing through the visualization and the formalization of a gesture, in order to focus the attention on the ritual as a moment for the aesthetics of action. The gesture reveals itself in the form of magical representation. Participants were invited to reflect on their own family and proximal connections and then to give shape to an emotional constellation over maps and pictures of the cosmos.