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The following is a list of the specific funds to which you may contribute. If you do not wish to specify how you would like your donation to be used, the AAVSO will determine the fund where it is needed most and place it there.

Endowment Fund

The corpus of these funds are permanently restricted, income, capital gains and losses (realized and unrealized) are considered unrestricted income usable toward the operation of the organization. 

AAVSO Annual Campaign 2018 -- fill our sky with stars

You and the AAVSO: Together We Explore the Variable Sky

The AAVSO CAP Program is back this year! Click here for the details and become a Citizen Astronomer Promoter

Donate to the AAVSO

Donate to the AAVSO

Charitable contributions to the American Association of Variable Star Observers can have benefits that last a lifetime - and beyond. A bequest or life-income gift that includes the Association will support variable star research and education for generations to come. Your legacy can be made in a variety of ways that can have dramatic tax and financial rewards for donors.


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The American Association of Variable Star Observers is a registered 501(c)(3) non-profit scientific and educational organization. As such, we depend on the financial support of our members, benefactors, friends, foundations and corporate partners to continue our scientific and educational programs.

We extend our heart-felt appreciation to all of the benefactors of the AAVSO. THANK YOU!

AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484