Distance of stars

Improvements to telescopes enabled better estimation of the distance of stars from Earth by observing the parallax of stars such as Alpha Centauri. This highlighted the vast scale of the cosmos, measured in light years.
 Friedrich Wilhelm Bessel Germany 1838 Distance of stars

Improvements to telescopes enabled better estimation of the distance of stars from Earth by observing the parallax of stars such as Alpha Centauri. This highlighted the vast scale of the cosmos, measured in light years.