The passenger of the train carriage initially saw the polar star in front of the train, then after the train

The passenger of the train carriage initially saw the polar star in front of the train, then after the train turned, it turned out to be opposite the right window of the carriage. Determine in which direction the train was moving initially and where it turned.

Since in the Northern Hemisphere, the North Star is always directed to the North, it can be concluded that the train was originally headed in the North direction.
If Polar Star was behind the train, then in this case, the train would move strictly to the south.

Since after the train changed its direction the North Star was on the right, the direction was changed to the West.

If the polar star was on the left side of the train, then in that case, he would go to the East.

Answer: North, West.