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 gray 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.

 

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

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. 


AAVSO Maxima and Minima for Long Period Variables: Data Access

These data are formally published for the years 1900 to 2008.  For a description of this data set, please click here.


Note: A separate page exists for the data including unpublished times of maxima.  Go here for the current data set including the most recent data (through February of the current year).

Stars with maxima and minima data are as follows: