Abstract
The wiggles detected in HH outflows can be related, in a few cases, to the orbital motion of a binary stellar system. For these outflows it is possible to calculate the mass of the jet source and the orbital parameters using observational measurements (i.e., the opening angle of the wiggling jet pattern, the separation between successive wiggles, the jet velocity and the orientation of the jet with respect to the plane of the sky). An application to a few real cases will be presented.
