Skip to main content


The emergence, founding, and growth of the AAVSO


Amateur involvement in variable star astronomy from 1909 to 1918

Before the AAVSO

Amateur observers of variable stars in the United States from 1875 to 1910.
The full text of this article appears in the Journal of the AAVSO, Vol. 27, No. 2, 1999.


AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484