Thanks very much Grant. Great picture, very informative. From this picture, the plane of the solar system passes through the centre of the galaxy. That makes sense since the Galactic Centre is on the zodiac line in Sagittarius. If anyone is able to help, I would be very grateful for answers to the following further questions.

1. Are many planetary systems aligned like ours, with their ecliptic plane including the galactic centre?

2. In the picture, does the leftward movement of the system spiral clockwise or anti-clockwise?

3. How fast is it? (or, what is the distance and period of the path of the sun around the galaxy?)

4. Is the upward component of the leftward motion due to the movement of the sun against the galactic plane?

5. Have the period and amplitude of this up and down galactic motion been worked out?