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Planetary nebulae (PNe) and their central stars (CSs) are ideal tools to testevolutionary theory: photospheric properties of their exciting stars givestringent constraints for theoretical predictions of stellar evolution. Thenebular abundances display the star's photosphere at the time of the nebula'sejection which allows to look back into the history of stellar evolution - but,more importantly, they even provide a possibility to investigate on thechemical evolution of our Galaxy because most of the nuclear processed materialgoes back into the interstellar medium via PNe.  The recent developments in observation techniques and a new three-dimensionalphotoionization code MOCASSIN enable us to analyze PNe properties precisely bythe construction of consistent models of PNe and CSs. In addition to PNeimaging and spectroscopy, detailed information about the velocity field withinthe PNe is a pre-requisite to employ de-projection techniques in modeling thephysical structureof the PNe.Comment: 1 page, 1 figur

On the Velocity Field and the 3D Structure of the Galactic Soccer Ball Abell 43