TITLE

Leavitt, Henrietta Swan

PUB. DATE
January 2009
SOURCE
World Book Science Dataset;1/1/2009, p1
SOURCE TYPE
Encyclopedia
DOC. TYPE
Reference Entry
ABSTRACT
Leavitt, Henrietta Swan (1868-1921) was an American astronomer whose work revolutionized human understanding of the relative brightness and variability of stars. Her greatest achievement was in establishing the �period-luminosity� relationship of variable stars�stars whose brightness fluctuates over regularly occurring periods. This significant discovery became the basis for the ability of astronomers to calculate the distance of stars from the earth.
ACCESSION #
37309143

 

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