Catch a high-speed star.

The article provides information for astronomers who wish to see the motion of a star. The author writes that a pair of stars is visible in Cygnus the Swan; in fact, 61 Cygni in the upper left part of Cygnus the Swan, is a pair of stars. In 1792, the Italian astronomer Giuseppe noted that 61 Cygni moves 5" per year. For astronomers who wish to notice the motion of these stars, they will need to make a drawing of the stars' position and then return in five or six years.