The Rolling Stars and Planets are spherical art objects, standardized in size and basic material, but individually designed by each artist.
In Autumn 2008 Ledersberger-Lehoczky and István Jankovics organized a Symposium in the Gothard Observatorium of Astrophysics of the Eötvös Loránd University in Szombathely.
During the "Planetra Science Congress" 2008 in Münster Ledersberger-Lehoczky presented an art project which was decided to accompany the Year of Astronomy 2009.
A collective action with individual designed sphere-objects was arranged during a meeting in Vienna between Günther Frank and Elisabeth Ledersberger-Lehoczky.
In the Year of Astronomy 2009 25 visual artists, many of them members of the Austrian association of professional art in Vienna and Graz, designed spherical paintings and objects.