content related to research

Alert Notice 425: Monitoring of HBC 722 and VSX J205126.1+440523 Requested

October 1, 2010: Dr. Colin Aspin (U. Hawai'i) has requested the help of AAVSO observers in performing long-term photometric monitoring of the two new young stellar objects (YSOs) in Cygnus, HBC 722 and VSX J205126.1+440523 (see AAVSO Special Notice #216).  

Overview: Long-term visual light curves

Overview: Long-term visual light curves

This page gives background on our long-term visual data archives, with an emphasis on our data holdings for different classes of variable stars.  It is meant to give an overview of the AAVSO International Database (AID) to researchers interested in studying a number of different light curves of a given class, or who are interested in a summary of what the AAVSO's visual data archives have to offer.

Quickstart Guide to using AAVSO data

This is a short guide for researchers interested in analyzing data from the AAVSO International Database (AID).  It is intended to be an introduction to the data found in the AID, as well as a guide to help you begin utilizing these data in your research.  Data in the AID are heterogeneous in nature, and all users of AAVSO data are encouraged to work with the AAVSO to ensure that the data are being interpreted correctly.  All researchers are encouraged to contact the AAVSO at any stage of the