Postings prior to April 1, 2020
Leader: Peter Bealo contact
Resource Persons: Bob Massey, Arne Henden, Gary Walker, and George Silvis
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AAVSO Short Period Pulsator (SPP) Section
Michael Poxon has taken it upon himself to head a new AAVSO section on his favorite class of variable star: Pre-Main Sequence Stars (YSO/PMS). The AAVSO has had a long history of working with such objects, especially the "Orion variables" that were monitored by many visual observers for years.