Join us in celebrating 110 years at AAVSO's 2021 Annual Meeting!


Don't miss the 110th Annual Meeting! Meet our stellar line up of keynote speakers at 
The Row Hotel November 6 & 7, and share your research with the entire AAVSO community!


Sara Seager, O.C. Andrea Dupree  David Latham Joe Patterson

Massachusetts Institute
of Technology

Harvard-Smithsonian Center for Astrophysics (CFA) Harvard-Smithsonian Center for Astrophysics (CFA)

Photo credit: Jörg Meyer, Columbia College Today

Columbia University

                                                        Speaker bios and abstracts are here.


The Annual Meeting will be held in person from November 57 in Somerville, MA, and will include AAVSO observers and other citizen scientists presenting both in person and remotely. We will also have a livestream-viewing option on Nov. 6 & 7 that will be managed by a professional AV service to ensure a quality experience. 

Meeting and Workshop registrations are open! Registration links are to the right. 

Are you looking to give a presentation or present a poster? We are accepting abstracts!

Dates to remember (in Eastern Time):    

- Aug. 15:  Teacher applications for Spectroscopy Workshop due

- Sept. 30 (this is the new date): Abstracts for presentations and posters due

- Oct. 1:      Early bird registration rate ends

- Oct. 5:     Row Hotel Group Rate ends*

- Oct. 18:   Last day to register for in-person Meeting attendance

- Oct. 31:   Last day to register for online Meeting attendance

* AAVSO's Row Hotel Group Rate is available until October 5, 2021, but the number of rooms is limited, so we advise you to book soon: book your group rate hotel room for the AAVSO Annual Meeting.


110th Annual Meeting activities and dates (stay tuned for more details):

AAVSO Spectroscopy Workshop (ASW2021): November 3–4

Special speaker and cocktail hour: November 5 

Annual Meeting: November 6–7 

Membership Meeting: November 7, time TBA

Banquet: November 7



  • Oral presentations
    • In-person presenter applicants: please see requirements for attending here.
    • Whether you are interested in submitting an abstract to present an oral presentation in person or remotely, please click here.
  • Poster presentations
    • In-person presenter applicants: please see requirements for attending here.
    • Whether you are interested in submitting an abstract to present a poster in person or on our website, please click here.


Will the event be safe? Annual Meeting COVID Safety Protocols:

To protect our members, sponsoring vendors, and staff at the in-person Meeting, proof of full vaccination will be required to complete your registration.

Please note that other safety protocols may be in place, and change, based on updates from the CDC and the state of Massachusetts at the time of the Meeting.

Concerns about planning ahead for the fall?

We understand that planning for future events with COVID ever present can be challenging, so we are prepared to take the entire Meeting online if state and federal restrictions prevent travel and in-person gatherings in November. All registration fees can be converted to online pricing and refunds made as needed. The hotel allows guests to cancel their reservations up to 48 hours in advance of their arrival date.

Please note: All attendees at the meeting are expected to follow our Non-Discrimination and Non-Harassment PolicyEvent Conduct Policy, and COVID safety protocols. Participation in the meeting is taken to signify your acknowledgment that you have read these guidelines/policies and your agreement to adhere to them.