What Does AAVSO Stand For?

AAVSO stands for American Association Of Variable Star Observers

The American Association of Variable Star Observers (AAVSO) is a nonprofit organization dedicated to the study and observation of variable stars. Founded in 1911, AAVSO promotes collaboration among amateur and professional astronomers, providing resources, data, and training to enhance the understanding of stellar variability. By facilitating the collection and dissemination of observational data, AAVSO contributes significantly to astronomical research and education, helping to advance our knowledge of the universe.