The obvious displacement of celestial objects has been a topic of remark and inquiry since antiquity. Whereas stars seem fastened relative to 1 one other inside constellations over human timescales, this notion just isn’t solely correct. Their positions are, the truth is, topic to vary.
Understanding stellar motion is key to fields comparable to astrophysics and cosmology. Correct measurement of those shifts aids in figuring out stellar distances, velocities, and the general construction of the Milky Approach galaxy. Traditionally, this information has been very important for navigation and timekeeping.