Word: andromeda
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Dates: during 1900-1909
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Among the more important results of the investigations of the past year is the discovery of two new variables, three stars having peculiar spectra and the presence of hydrogen lines in the spectrum of V. Andromeda. The discovery of the variability of light of Eros has added greatly to the value of the early Photographs of that body. Photographs of the spectrum of lightning were obtained last summer for the first time. It is expected that the discovery will open a new field for spectroscopic work...