The three laws of planetary motion, formulated by Johannes Kepler, are as follows:
1. **Kepler's First Law** (Law of Ellipses): The orbit of a planet around the sun is an ellipse, with the sun at one of the two foci.
2. **Kepler's Second Law** (Law of Equal Areas): A line segment joining a planet and the sun sweeps out equal areas during equal intervals of time.
3. **Kepler's Third Law** (Law of Harmonies): The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.
So, in the correct order:
1. Kepler's First Law
2. Kepler's Second Law
3. Kepler's Third Law