Peter D. Usher

Peter D. Usher

The Pennsylvania State University
Astronomy and Astrophysics
1725 Yorktown Place
Pittsburgh PA 15235
Pennsylvania (PA)
United States

Phone: +1 412 371 3839
Email: pxu1psuedu
Personal website:

Last updated:
February 18, 2016

IAU Status

Active Member

Affiliation(s) within the IAU

Past affiliation(s) within the IAU

  • Past Member of Division V Variable Stars (until 2012)
  • Past Member of Commission 27 Variable Stars (until 2015)
  • Past Member of Commission 41 History of Astronomy (2006-2015)

Search individual members

IAU e-Newsletter
Volume 2016 n° 2

Latest e-Newsletter

Subscribe to the e-Newsletter


UNESCO-IAU Portal to the Heritage of Astronomy


IAU General Assembly 2018

IAU XXX GA Vienna Logo

IAU Directory for World Astronomy


IAU Office of Astronomy for Development

Office for Astronomy Development

IAU Office for Astronomy Outreach

Office for Astronomy Outreach

Astronomy Outreach Newsletters and Events

Outreach Newsletters

Peer-reviewed Astronomy Education Activities

Astro EDU

Astronomy for Development 
Strategic Plan 2010–2020

Strategic Plan

Portal to the Universe

Portal to the Universe