The AAVSO has numerous observing aids designed to help you make the most efficient use of your valuable observing time. Each Observing Section and each mode of observing has a variety of resources – be sure to visit these pages and explore the links. The best place to start is the "Observing at a Glance – for Observers" page (https://www.aavso.org/observers).
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.
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
In the April 2014 Newsletter we published an article on variable stars with close companion causing problems with their photometry.
In this page we give more information and updated tables so you can be aware of the stars that are causing problems or have caused problems in the past.
We will be updating this information with more stars in the future.
If you find a problem similar to those described in the Newsletter article, please let us know.
Revised 2023 June 21, 2022 November 21
Jump to Formal policy: Acknowledgement for Using AAVSO Data
Jump to Dear Colleague letter from the Director on using AAVSO data
Images in A Century of Variable Star Observing: 1911-2010
November 2011: AAVSO reports - submitting observations to the AAVSO International Database
September 2, 2010: We have been notified by Dan Green, Central Bureau for Astronomical Telegrams, that Berto Monard (MLF), Pretoria, South Africa, has discovered a bright supernova (discovered at 15.0, brightened to 14.7 in 24 hours) in NGC 3001. Here are details quoted from CBET 2434 (Green, ed.):
Variable star observations submitted to the AAVSO by observers are added to the AAVSO International Database each month. The number of observations added for each observer is recorded and a cumulative total for each observer for the entire fiscal year is calculated at the end of the year.
Quick link: want to get involved? Visit the Eggen Data Project
