AAVSO 2022 webinar discussions













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The talk in January:


"Star Tickling and the AAVSO"

with Dr. Jill Tarter

In 2008, Learned, Kudritzki, Pakvasa, and Zee1 suggested that an advanced technological civilization might phase modulate Cepheids and other regularly variable stars in order to create a type of Morse code that could transmit information across the galaxy. Several attempts have been made to find such modulations, but the AAVSO would appear to be the ideal organization to conduct a systematic exploration of observational records stretching over a century. 

1 https://arxiv.org/abs/0809.0339v2