was related to the star's magnitude, not distance. Yet magnitude itself allowed you to calculate distance. Leavitt published her findings in 1912 -- in a chart of 25 cepheid periods and their ...

By intense observation of a certain class of variable star, the cepheids, Leavitt discovered a direct correlation between the time it took a star to go from bright to dim to how bright it actually ...

Karoline Leavitt Shocks Democrats With 1 Chart - Watch How| Trump| White House| US News ...