Proper motion of the stars

1. Bessel reasoned that stars with large proper motion were probably much closer than the other nearby stars
2. This is a gif of the Barnard Star. (The star which has the largest proper motion)
3. The total range of motion is 150 arcseconds
4. The distance to the star 6 light years or 1.8 parsecs.
5. Determine the speed of the Barnard star in m/s