What orbital geometry is required for the Radial Velocity method to be most effective?

Answer

The planet’s orbital plane must be nearly edge-on

The RV technique measures movement directly toward or away from the observer; thus, it is most effective when the planet’s orbital plane is nearly edge-on relative to our perspective.

What orbital geometry is required for the Radial Velocity method to be most effective?
astronomyorbitstarexoplanetdetection