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Precession
Radio Programs
Moon and Spica
May 30, 2023Moon and Spica
May 3, 2023Moon and Spica
August 3, 2022Thuban
September 30, 2021Moon and Antares
September 12, 2021Moon and Aldebaran
April 15, 2021Moon and Spica
January 5, 2021Future North Poles
July 18, 2020Moon and Spica
June 28, 2020Summer Solstice
June 20, 2019Alderamin
September 19, 2017The Dog Days
August 6, 2017Pole Stars
March 5, 2017