Henrietta Swan Leavitt

This week we are swinging all the way back to the 1860’s to meet Henrietta Swan Leavitt – an American astronomer ‘known for her discovery of the relationship between period and luminosity in Cepheid variables, pulsating stars that vary regularly in brightness in periods ranging from a few days to several months’ (source). … IfContinue reading “Henrietta Swan Leavitt”