Gaia plugin for VStar

Thanks to a fantastic volunteer effort by Cliff Kotnik and David Benn, we now have a plugin availble for VStar which can be used to view and plot data on variable stars directly from the Gaia website (DR 2).

To learm more about it, please see Cliff's forum post:

There is also documentaion on how to use this plugin (and many others) on the VStar Plugin Library webpage:

We hope you will find this useful!


What is VStar?

VStar is a multi-platform, easy-to-use variable star data visualization and analysis tool that was originally developed as part of the AAVSO's Citizen Sky project. Data for a star can be read from the AAVSO database or from a text file of your own creation. It will plot the data on a light curve and then it's up to you what happens next!

CHOICE Fall Schedule 2014

The Fall Schedule of CHOICE courses has been set. Most courses are available to AAVSO members AND the general public.  Class size is limited to 15 people, so sign up as soon as you can to save a seat.​ Registrations are available on a first-come, first-serve basis, and are handled through our online store. The fee for AAVSO members is $30.00. Non-members pay $50.00.

How To Use VPHOT (August 11-September 5) Class Full- Registration Closed 

VStar 2.16.1 Release

A new version of VStar has just been released! This version contains security upgrades and will re-enable the Plug-in Manager and discrepant observation reporting that were disabled in the wake of the AAVSO Security breach. (Please note that the Members-only BSM and APASS Epoch Photometry plugins are still not available until further security measures can be implemented.)

In addition to the security upgrades, David Benn has also corrected several bugs and incorporated other changes based on valuable feedback from participants in his recent VStar CHOICE course. 

VStar User Manual

The VStar User Manual is now available for download! Thanks to a Herculean effort by VStar's creator David Benn along with some invaluable editorial and annotational help from Kristine Larsen, this long-anticipated publication has become a reality.

To get your copy, please visit the VStar Overview page and click on the yellow button marked "Download VStar User Manual". You will be glad you did!

New VStar Release

VStar version 2.15.1 has just been released. If you have been using VStar already, the new version will be automatically downloaded next time you open it. If you have never used VStar before (or don't know what it is) then you can learn about it and download the latest version from this page:


There are also a lot of fantastic plugins available for VStar which you can get here: