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- Amateur Photometry with Small Telescopes (RASC 2005)
(PPT) (PDF) - The Science of Light (Shamrock School Feb 28, 2011)
(PDF) (PPT) - Photometry for Amateurs using iTelescopes (RASC Sept 14 2018)
(PDF) (PPTX) (YouTube) - The Hale Telescope at Palomar: the 200″ at 70 (RASC Feb 9 2019)
(PDF) (PPTX) (YouTube) - ATM and Open Astronomy (Spruce Woods Star Party Aug 31 2019)
(PDF) (PPTX) (Demo) - Building a Backyard Observatory (RASC Oct 2019)
(PPTX) (PDF) (Youtube) - Open Astronomy (RASC May 8 2020)
(YouTube) - Boots on Mars this Decade (RASC February 11 2022)
(PPTX) (PDF) (Video MP4) (Youtube)