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AID

The AAVSO Research Portal

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.

 

The AAVSO International Database

Looking for AAVSO Data?  Go directly to AAVSO Data Access.

The AAVSO International Database has over 34 million variable star observations going back over one hundred years. It is the largest and most comprehensive digital variable star database in the world. Over 1,000,000 new variable star brightness measurements are added to the database every year by over 700 observers from all over the world.

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Datos de la BAAVSS ahora disponibles a través de la AAVSO

La American Association of Variable Star Observers (AAVSO) y la British Astronomical Association Variable Star Section (BAAVSS) tienen el agrado de anunciar que el archivo de observaciones de estrellas variables de la BAAVSS ya está disponible a través del sitio web de AAVSO. Los archivos de la BAAVSS cuentan con más de 2,5 millones de observaciones de estrellas variables realizadas en su mayoría por astrónomos aficionados de todo el mundo durante los pasados 150 años.

BAAVSS data now available through the AAVSO

The American Association of Variable Star Observers (AAVSO) and the British Astronomical Association Variable Star Section (BAAVSS) are pleased to announce that the variable star observation archive of the BAAVSS is now available through the website of the AAVSO.  The BAAVSS archives comprise over 2.5 million variable star observations made mostly by amateur astronomers world-wide over the past 150 years.  These data now join the archives of the AAVSO in the AAVSO International Database, which consists of over 25 million variable star observations made by observe

The AAVSO International Database Breaks Twenty-Five Million Observations!

Over the weekend the AAVSO International Database (AID) hit an important milestone.  We broke the twenty-five million mark!  We would like to express our appreciation to each and every observer who has contributed even a single observation to that total.

Almost Twenty-Five Million! ... and Counting

We are approaching a milestone in the AAVSO International Database. Are you counting?

If you take a look at the observation total in the Recent Activity section of the AAVSO homepage, you will see that we will soon reach twenty-five million observations!

Data Usage Reports are available again

We are happy to announce that after a few months of testing, the AAVSO's Data Usage Reports are now available to all observers again.  You may subscribe to these weekly reports by visiting this page:

http://www.aavso.org/apps/email/

Archival Data Digitization -- Work In Progress

The AAVSO's volunteer-driven project to digitize paper archives of variable star observations is moving forward, and there have been some exciting developments over the past few months that deserve to be mentioned.  Here, I'll summarize some of the happenings in this project, and talk about some of the issues that have arisen at AAVSO and among the volunteers. 


20 Million Observations

On Feburary 19, 2011 the number of observations in the AAVSO International Database surpassed the 20 million mark. It is fitting that this milestone was achieved during our 100th anniversary. Below is some information about the achievement.

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