M13 image by Rich Lohman
The Pacific Planetarium Association is a non-profit organization with members mostly from planetariums in the western states of Alaska, Arizona, California, Hawaii, Idaho, Nevada, Oregon, Washington.

Watch recordings of Pacific Planetarium Seminars. 

Upcoming PPA events: 

  • 2018 September 12-14 — Live Interactive Planetarium Symposium in Seattle, WA at the Willard Smith Planetarium, Pacific Science Center.
  • 2018 October 26, 3:30 pm, PDT — Pacific Planetarium Seminar via Zoom videoconference, featuring Dr. Julie D. Stopar, Staff Scientist at the Lunar and Planetary Institute (https://www.lpi.usra.edu/science/staff/stopar/). Topic: "New Views of Lunar Volcanism from Orbit". This will be an overview of volcanic landforms on the Moon with focus on some of the previously unknown ones that were discovered since the Lunar Reconnaissance Orbiter started orbiting the Moon in 2009. The new high-resolution camera data has helped improve the understanding of the Moon's interior and how the Moon's surface formed. 

You can find the web sites of other planetarium regionals on
the Affiliates page of the International Planetarium Society website

For questions about this site email Alan Gould <adgould[at]comcast.net>