Edward Michael Sion

Villanova University
Astronomy & Astrophysics Dept
Mendel Hall
800 Lancaster Ave
Villanova PA 19085
Pennsylvania (PA)
United States

NCA adherence: United States

Last updated:
February 27, 2021

IAU Status

Active Member

Affiliation(s) within the IAU

Past affiliation(s) within the IAU

  • Past Organizing Committee Member of Commission 42 Close Binary Stars (2006-2009)
  • Past Organizing Committee Member of Commission 42 Close Binary Stars (2003-2006)
  • Past Member of Commission 42 Close Binary Stars
  • Past Member of Commission 35 Stellar Constitution (until 2015)
  • Past Member of Commission 45 Stellar Classification (until 2015)
  • Past Member of Division IV Stars (until 2012)
  • Past Member of Division V Variable Stars (until 2012)

Areas of interest

1 - General: 1.2 - Extraterrestrial intelligence
2 - Physical data and processes: 2.5 - Accretion, accretion disks, 2.23 - Nuclear reactions, nucleosynthesis, abundances
3 - Astronomical instrumentation, methods and techniques: 3.8 - Space instruments
4 - Astronomical data bases: 4.3 - Catalogs
5 - Astrometry and celestial mechanics: 5.6 - Parallaxes
6 - The Sun: 6.25 - Sun: solar wind
7 - Planetary systems: 7.7 - Meteorites, meteors, meteoroids
8 - Stars: 8.26 - Stars: novae, cataclysmic variables, 8.39 - Stars: white dwarfs
9 - Interstellar medium (ISM), nebulae: 9.16 - ISM: planetary nebulae
10 - The Galaxy: 10.17 - Galaxy: stellar content
11 - Galaxies: 11.9 - Galaxies: evolution
12 - Cosmology: 12.1 - Cosmology: cosmic background radiation, 12.14 - Cosmology: primordial nucleosynthesis

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