Identifications of Centennial Calendar Images: April 2011
Images in A Century of Variable Star Observing: 1911-2010
April 2011: AAVSO Headquarters locations
Clockwise from top left:
AAVSO Recorder
Identifications of Centennial Calendar Images: January 2011
Images in A Century of Variable Star Observing: 1911-2010
January 2011: AAVSO leaders
Clockwise from top center: