The American Association of Variable Star Observers (AAVSO) is a 501c(3) nonprofit organization whose worldwide scientific and educational activities focus on studying stars that change in brightness (variable stars) and other astronomical objects whose properties change over time.
- Two FBAC members are currently serving on AAVSO’s Board of Directors:
Walt Cooney will continue serving as AAVSO’s President - Elizabeth Prochnow, FBAC Board member and Treasurer, was elected for a three year term as an AAVSO Director on November 8, 2026
AAVSO provides amateur astronomers and students with the opportunity to make real and direct contributions to astronomy.
AAVSO supports scientific participation across four core areas: stellar photometry, stellar spectroscopy, exoplanet photometry, and sunspot counting.
Click here for more information on AAVSO or if you are interested in joining their community of over 1400 members worldwide dedicates to variable star research.
