September 2005 - October 2016
Barnard's Star is a red dwarf approxuimately six light years distant from Earth in the constellation of Ophiuchus. It is the fourth-nearest star to the Sun, after the Alpha Centauri system, which contains three components. It has an apparent magnitude of +9.5 and is invisible to the naked eye; it is much brighter in the infrared than in visible light.
The star is named after the American astronomer E E Barnard (1857-1923) who, in 1916, measured its proper motion (PM) as 10.3 arcsec per year. This is the largest known PM of any star relative to the Sun. (Its space velocity relative to the Sun is 143 km/s.)
The image below shows the apparent motion of Barnard's Star from September 2005 to October 2016.