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AAVSO activities fall into three categories: observing, analysis and other.  Below is a quick summary of each.

Observing - Point your eyes to the skies.


Help HQ Validate Data with ... Zapper!

Are you interested in helping HQ make sure that our variable star data remains the best in the world? You can help us to achieve that goal by using Zapper. Zapper is a new Java, multi-platform program that will enable our members and observers to help us in the massive task of making sure our data is of the highest quality.

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