Ep#28 - Alessandro Pessi & Luca Quaglia - Besselian Elements
Show Notes: Basselian Elements — Eclipse Chasers & Citizen Scientists Host Leticia Ferrer talks with Luca Quaglia and Alessandro Pezzi of BasilianElements.com, a team of eclipse chasers known for their detailed mountain-shadow and lunar-limb mapping ahead of major solar eclipses. Topics covered: 1:04 — How the international team came together (university friends from Italy, joined by collaborators in England, Greece, and Romania after their first eclipse in 1999) 7:44 — Measuring the solar radius using total solar eclipses, and why the century-old reference value needed revisiting 13:07 — Why they camp out at the edge of the path of totality for maximum measurement sensitivity 19:04 — The 2024 Texas eclipse story — a fellow observer expecting a minute of totality got 12.8 seconds instead 51:49 — Annular eclipses and Baily's Beads — how they extract solar-radius data even without full totality 46:53 — Avoiding classic eclipse-chasing mistakes (like forgetting to remove the solar filter) through rigorous preparation 46:24 — Their free Eclipse Countdown app for precise contact times 58:46 — Plans for the 2027 Spain eclipse, chasing the edge near Zaragoza/Teruel Besselian Elements: https://www.besselianelements.com/ Leticia's video: https://www.youtube.com/watch?v=zR6wVyBLhdE Leticia Ferrer's site: https://texassolareclipses.com/ Host Chris Chotas Alexander's Site https://www.chotachrome.com/ IG: @chotachrome Totality Talks is created by Leticia Ferrer and Chris Chotas Alexander. Totality Talks is produced by Chris Chotas Alexander.
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