Uploaded August 2025 | Updated September 2026, 2 weeks ago
With over a century of observations, this bright supergiant continues to surprise and challenge us . . . a Great Dimming and now the possibility of a companion hidden deep within its atmosphere. Dr. Andrea Dupree relates the history, puzzling behavior, and the unique contributions of the AAVSO as well as ongoing studies of Betelgeuse.
Andrea Dupree is a Senior Astrophysicist in the Solar Stellar Planetary Sciences Division of the Center for Astrophysics | Harvard & Smithsonian.
*Timestamps:*
00:00 Opening Announcements
03:55 Presentation - Andrea Dupree
47:54 Questions & Answers
55:00 Short Period Pulsators SIG - Eric Hintz
1:15:27 Closing Announcements
*✩ Interested in attending a live AAVSO webinar on Zoom?* Visit aavso.org/webinars to view our schedule and register for upcoming events.
With over a century of observations, this bright supergiant continues to surprise and challenge us . . . a Great Dimming and now the possibility of a companion hidden deep within its atmosphere. Dr. Andrea Dupree relates the history, puzzling behavior, and the unique contributions of the AAVSO as well as ongoing studies of Betelgeuse.
Andrea Dupree is a Senior Astrophysicist in the Solar Stellar Planetary Sciences Division of the Center for Astrophysics | Harvard & Smithsonian.
*Timestamps:*
00:00 Opening Announcements
03:55 Presentation - Andrea Dupree
47:54 Questions & Answers
55:00 Short Period Pulsators SIG - Eric Hintz
1:15:27 Closing Announcements
*✩ Interested in attending a live AAVSO webinar on Zoom?* Visit aavso.org/webinars to view our schedule and register for upcoming events.
