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25 Year Members

Congratulations and thank you to the following AAVSO members for having been members for over 25 years, as of the AAVSO's 101st Annual Meeting in November 2012 or later!  We greatly appreciate your lasting support.

AAVSOnet Epoch Photometry Database

The AAVSOnet Epoch Photometry Database comprises robotically-processed photometry obtained from all images taken with AAVSOnet telescopes.  The major component of this database are observations from the Bright Star Monitor network, as these telescopes have taken the majority of images.  There are smaller datasets from telescopes that were only operational during the early days of AAVSOnet, covering fewer targets but going much deeper and often with high cadence (time series).  For all current telescopes, the intent is to provide public access to older dat

Identifications of Centennial Calendar Images: Back Cover

Images in A Century of Variable Star Observing: 1911-2010

Back Cover

 - Small versions of artwork for the months of January-December 2011

 - Text about the AAVSO and this calendar:

Identifications of Centennial Calendar Images: June 2011

Images in A Century of Variable Star Observing: 1911-2010

June 2011: AAVSO members, observers, and friends

Charles Scovil Receives Peltier Award from Astronomical League

This Award is provided by the Astronomical League and Meade Instruments For
Amateur Astronomers who contribute astronomy observations of lasting

Given To

From Bourbon Lancy to Cape Town

From Bourbon Lancy to Cape Town

by Janet A. Mattei, AAVSO Director


Services to Astronomy

Support the AAVSO

The American Association of Variable Star Observers is a registered 501(c)(3) non-profit scientific and educational organization. As such, we depend on the financial support of our members, benefactors, friends, foundations and corporate partners to continue our scientific and educational programs.

A list of benefactors is available (starts in 2007). Thank you for supporting the AAVSO!

AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484