All pricing information for 2021 is available here (pdf)
For new subscribers: The following AAVSO publications are available on a yearly subscription basis. The subscription period is from January 1–December 31. Payment is due by January 1. For more information or to subscribe to any of our publications, please contact the AAVSO.
AAVSO Newsletter Number 74 (October 2017) has been published and is online. AAVSO members may download a high- or low-resolution version from here. This issue will be available to non-members when the next issue (Number 75, January 2018) is published.
July 28, 2017: The AAVSO Special Notice is being discontinued as of July 28, 2017. This notice - #430 - is the last Notice of the publication.
The type of information supplied in AAVSO Special Notices will now be supplied in the AAVSO Alert Notices and/or in the AAVSO online forums on Campaigns & Observation Reports, Time Sensitive Reports, and the other Variable Star Observing and Variable Star forums, as appropriate.
The AAVSO Program Committee spent many months evaluating the AAVSO's programs and activities. This committee has now released its report. A pdf version of the report may be found at
The paper "Modern observations of Hubble's first-discovered Cepheid in M31" has been accepted for publication to PASP, and is now available on arXiv.org.
The AAVSO is pleased to announce the availability of our new