solar motion

Solar motion refers to the movement of the Sun and the solar system relative to other stars in our galactic neighborhood. Astronomers calculate this motion by observing stars' radial velocities, proper motions, and space motions.123

The Sun's motion is not static; it moves at approximately 19.5 km/sec relative to its closest stars. The direction the Sun is moving is called the solar apex, which is located in the constellation Hercules. Conversely, the antapex is the point from which the solar system is moving. Understanding solar motion helps astronomers study the dynamics and history of the Milky Way Galaxy.4562