What is Charlotte Moore Sitterly?
'''Charlotte Emma Moore Sitterly''' (September 24, 1898 – March 3, 1990) was an [[Americans|American]] [[astronomer]]. Charlotte Moore was born in [[Ercildoun, Pennsylvania|Ercildoun]], [[Pennsylvania]]. She [[Graduation|graduated]] from [[Swarthmore College]] in 1920 and went on to [[Princeton University|Princeton]] to assist [[Henry Norris Russell]]. During this time, she worked at the [[Princeton University Observatory]] and the [[Mt. Wilson Observatory]]. She worked much on [[solar spectroscopy]], studying the [[spectral line]]s of the [[Sun]] and identifying the [[chemical element]]s in the Sun. She earned a [[Ph.D.]] in astronomy in 1931 from the [[University of California, Berkeley]] on a [[Lick Fellowship]]. She then returned to Princeton. During her second stay at Princeton, she met and married Bancroft W. Sitterly, who became a [[physics]] [[professor]]. She joined the then [[National Bureau of Standards]] (NBS) in 1945. Her tables of [[atomic spectra]] and [[energy levels]], published by NBS, have remained essential references in [[spectroscopy]] for decades. Later in her life, it became possible to launch [[instrument]]s on [[rocket]]s and she extended her work to the [[ultraviolet]] spectral lines. {{DEFAULTSORT:Sitterly, Charlotte Moore}} [[Category:1898 births]] [[Category:1990 deaths]] [[Category:American astronomers]] [[Category:Scientists from Pennsylvania]]