Hеnriеttа Swаn Lеаvitt (Julу 4, 1868 – Dесеmbеr 12, 1921) wаѕ an Amеriсаn аѕtrоnоmеr whо diѕсоvеrеd thе relation bеtwееn thе luminоѕitу and thе реriоd оf Cepheid Full Biography
It is hoped that systematic study of the light changes of all the variables, nearly two thousand in number, in the two Magellanic Clouds may soon be undertaken at this Observatory. Henrietta Swan Leavitt
It is hoped that systematic study of the light changes of all the variables, nearly two thousand in number, in the two Magellanic Clouds may soon be undertaken at this Observatory.
It is worthy of notice that in Table VI the brighter variables have the longer periods. Henrietta Swan Leavitt
It is worthy of notice that in Table VI the brighter variables have the longer periods.
It is to be hoped, also, that the parallaxes of some variables of this type may be measured. Henrietta Swan Leavitt
It is to be hoped, also, that the parallaxes of some variables of this type may be measured.