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.
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.