With a half year's worth of images, the astronomers determined that the star and the object moved together through the sky with the high common
proper motion exhibited by nearby objects in the Solar neighborhood, confirming that the two are physically associated.
According to Robert Burnham, Jr. (1931 - 93), Aldebaran A
exhibits an annual
proper motion of 0.21» around PA 160 ° with an radial velocity of about 33 miles (53 km) per second in recession.