John Percy

Professor Emeritus

john.percy@utoronto.ca

John Percy is a Professor Emeritus in Astronomy and Astrophysics in the Faculty of Arts and Science at University of Toronto and in Science Education at OISE. His research interests in the discipline of Astronomy and Astrophysics deals with the nature and evolution of stars, as deduced from variable stars which change in brightness. 

With regards to science education research, he is passionate about the development of the astronomy curriculum in Ontario schools, public science literacy, the roles of science centres and planetariums, the role of skilled amateurs in research and education (“citizen science”), international astronomy education and multicultural astronomy. He also publishes many short, non-refereed articles about various aspects of astronomy and astronomy education as well as variable stars and stellar evolution.

Selected Publications:

  • Percy, J. R. (2020). A note on bimodal pulsating red giants. Journal of the American Association of Variable Star Observers (JAAVSO), 48(1), 10-12.
  • Percy, J., & Wallace, A. M., (2020). ASAS-SN observations of long secondary periods in pulsating red giants. Journal of the American Association of Variable Star Observers (JAAVSO), 48(1), 31-34.
  • Percy, J. R., & Fenaux, L. (2019). Period analysis of all-sky automated survey for supernovae (ASAS-SN) data on pulsating red giants. Journal of the American Association of Variable Star Observers (JAAVSO), 47(2), 202-208.
  • Percy, J. R. (2017). Public libraries: Effective partners in astronomy outreach, CAP Journal, 22, 5-8.
  • Percy, J. R. (2017). Forty years of linking variable star research with education. Retrieved from arXiv preprint arXiv:1710.04492.