Welcome to the AAVSO's Research Portal. From this page, you can find information about obtaining AAVSO data, requesting new observations, or learning more about the AAVSO, its data, and its services for the research community. Its purpose is to facilitate your use of the AAVSO's resources in your research efforts.
See the blue boxes on the right hand side of this page to access the AAVSO data archives or to find out how to work with the AAVSO to obtain new scientific data.
"I feel it is my duty to warn others...that they approach the oberserving of variable stars with the utmost caution. It is easy to become an addict, and as usual, the longer the indulgence is continued the more difficult it becomes to make a clean break and go back to a normal life."
