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Using the recently determined spatial velocity components of the extremerunaway star HIP 60350 and a gravitation potential model of the Galaxy, weintegrate the orbit of HIP 60350 back to the plane of the Galaxy. In this way,a possible location of the formation of the star is determined. We estimate theuncertainty of the result due to the uncertainties of the gravitationalpotential model and the errors in the spatial velocity components. The place ofbirth lies (within the errors) near the position of the open cluster NGC 3603.However, the ejection event which occured about 20 Myr ago is in contradictionwith the cluster mean age of 3-4 Myr. We suggest that it occured at an earlierphase in sequential star formation in that region. We discuss also ejectionmechanisms. Due to the rather high mass of the star (about $5 \Msol$), the mostprobable model is that of dynamical ejection.Comment: Astron. Astrophys. submitted, 7 pages, 5 eps figure

Origin and possible birthplace of the extreme runaway star HIP 60350