Motion of the Sun

Herschel's observations led to the revelation that the Sun was not stationary and that it was, in fact, moving towards a specific point in space. This systematic measurement of proper motion of nearby stars fundamentally changed the perception of celestial dynamics.
 William Herschel England 1783 Motion of the Sun

Herschel's observations led to the revelation that the Sun was not stationary and that it was, in fact, moving towards a specific point in space. This systematic measurement of proper motion of nearby stars fundamentally changed the perception of celestial dynamics.