ALCON 07 - Astronomical League Convention
"Exploring de Southern Skies"
Leo Cavagnaro (Portland State University, Oregon, USA August 2007).
Rose City Astronomers General Meeting
"Southern Sky Treasures"
Leo Cavagnaro (OMSI, Portland Oregon September 2010).
"The Large Magellanic Cloud, the Theory and the Observation"
Leo Cavagnaro (Oregon USA, August 2012).
Video of the ppt presentation "The Large Magellanic Cloud, the Theory and the Observation".
The time-lapse video inserted at the beginning of this presentation was made by frèdèric Tapissier.
"Upcoming Eclipses in South America"
Leo Cavagnaro (Oregon USA, August 2017).
"The 2019 & 2020 Solar Eclipses in Argentina"
Leo Cavagnaro (Oregon USA, August 2018).