American Association of Variable Star Observers (AAVSO)

Happy birthday Rod Stubbings!

Read our blog post on his exciting first discovery.

https://www.aavso.org/blog/Stubbings-V1

Don’t forget, there is still time to contribute to our annual campaign for the 2025 tax year. Donate now:

https://www.aavso.org/donate-now

Wishing you clear skies in 2026!

We are happy to announce that a new educator will be joining the AAVSO staff in 2026. This opportunity to expand our services to members would not be possible without your support.

As we re-commit to providing more educational sessions and opportunities, we need your help. Make your gift today to provide invaluable support to future astronomical studies and fuel the education needed to grow variable star research.

https://linkly.link/2W6HP

We are grateful for your commitment to our mission and look forward to the discoveries that the clear skies of 2026 will bring.

By measuring changes in light output on many different timescales, we can detect and analyze a myriad of phenomena, from stellar rotation to the dynamics of nascent exoplanet systems.

Join Dr. Ann Marie Cody on Saturday, December 13, as she takes the pulse of the stars . . .

https://us02web.zoom.us/webinar/register/6417605605330/WN_y3gEDhxFQW2QbKNXFo78Lw

Your support of the AAVSO’s annual campaign will help fund a new educator position and learning opportunities for all levels of observers.

Donate today: https://www.aavso.org/donate-now

With the third Special Interest Group (SIG) webinar scheduled for tomorrow—and a limited number of registrations remaining—we encourage interested parties to sign up now.

Join us at 2pm Eastern to hear from SIG leaders Walt Cooney, Arne Henden and Scott Donnell.

Bring your questions!

https://us02web.zoom.us/webinar/register/2517582031768/WN_dHvJ4-9bRCqJndBDZwBqPg

If you like the sound of collecting unlimited data with 24-inch remote telescopes, you won't want to miss the presentation by the AAVSOnet Section.

If recurrent novae make your heart beat fast, you’ll find a place among friends in the Cataclysmic Variables Section, one of the AAVSO's most popular.

And if the idea of splitting light from distance objects to divine their physical and chemical properties makes you starry-eyed, you’ll find the Spectroscopy SIG truly lit.

When: Saturday, November 15 at 2pm ET / 19:00 UTC
Where: Zoom
Register: https://linkly.link/2KQ1l

AAVSO Staff Astronomer Dr. Bert Pablo gave the final presentation of the Annual Meeting.

Entitled “Waiting for T CrB,” Bert highlighted some of the ways AAVSO data has been used by professional astronomers in the past year, and closed by encouraging our observers’ continued engagement and contributions.

See you next year!

The second keynote was presented by Dr. Melissa Graham, a research scientist at the Department of Astronomy, University of Washington.

Dr. Graham works with the and its Legacy Survey of Space and Time (LSST) as a Data Management Science Analyst.

An Annual Meeting would not be an Annual Meeting . . . without the group photo.

A pictorial record of attendees, our group photo catalog goes back more than a century.

Compare the photos from 2025 and 1925! The century-old picture captures attendees of the Spring Meeting at the home of J. E. G. Yalden, Leonia, New Jersey, on May 23, 1925.

You can browse these images across the ages on the AAVSO website.

https://www.aavso.org/group-photographs