How do the stars of the galactic disk revolve around the center of our Galaxy? With what, approximately, the linear speed of the Sun

How do the stars of the galactic disk revolve around the center of our Galaxy? With what, approximately, the linear speed of the Sun moves around the center of the Galaxy and what is the total period of the Sun’s revolution?

The stars of the galactic disk revolve around the galactic nucleus in the same direction in orbits close to circular. Their speed in the vicinity of the Sun is about 230 km / s. The full orbital period of the Sun in the Galaxy is approximately 200 million years.

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