Support the AAVSO: Donations and Membership

Donate to AAVSO, an international nonprofit:

Your donations support the AAVSO's work of "enabling anyone, anywhere, to participate in scientific discovery through variable star astronomy."


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Become an AAVSO member or renew your membership:

AAVSO members are those in our international community who pay annual dues. In exchange for dues, members receive exclusive access to certain AAVSO observing tools, programs, discounts, and more.  

Telescope on blue background