Celebrate 110 years of AAVSO citizen science with us!


AAVSO is celebrating 110 years of citizen science!

October 10, 2021 through October 9, 2022 

Thanks to each of you who have been involved in AAVSO programs, observing, and more! You are contributing to 110 years of citizen and professional astronomy and collaborations! 

If AAVSO has impacted you, we would love to know how and be able to post your thoughts on our website to encourage others to grow their passion, learn, and be a part of AAVSO's years to come!
Please send your testimonials to aavso@aavso.org.


A few messages of congratulations from AAVSO friends and collaborators:





Join in celebrating 110 years with the AAVSO and benefit from 12 months of promotion for your business or organization!