From what specific viewpoint is the orbital motion of planets defined as counter-clockwise?

Answer

Looking down onto the plane of the solar system from above the Sun's North Pole

The standard definition requires an observer looking down onto the solar system plane from above the Sun's North Pole to observe both orbital and most axial rotations as counter-clockwise.

From what specific viewpoint is the orbital motion of planets defined as counter-clockwise?

#Videos

Why Do Clocks Run Clockwise? | Neil deGrasse Tyson Explains...

physicsobservationrotationdirectionclock