The Pacific Planetarium Association (PPA) is a non-profit organization with members mostly from planetariums in the western states of Alaska, California, Hawaii, Idaho, Nevada, Oregon, Washington.

Our mission is to facilitate communication and cooperation among members of the planetarium community to help them provide the very best services to their respective communities in science literacy, arts & humanities awareness, and understanding of our universe.

Upcoming PPA events:

  • Planetarians' Zoom Seminars (PZSs) are usually on the last Friday of the month. They are recorded and archived on the Seminar Archive page. For connection URL, see the Seminar Connection page. See Seminar Schedule page for full descriptions.

  • 28 October, 2pm Pacific, 21:00 UT - "Blending Videos: Video Editing Workshop for Domes and Informal Educators" - Recording Posted

  • 18 November, 11am Pacific, 19:00 UT. The Astronomy of the Northern Dene (Athabascans), Chris Cannon, Assistant Professor with the Center for Cross-Cultural Studies at the University of Alaska, Fairbanks. At the center of these knowledge systems is a principal constellation identified as the incarnated spirit of a Traveler-Transformer figure who journeyed around the world in ancient time. Although this Traveler is widely known in Dene stories as the one who instilled balance and order in the world, his enigmatic transformation to the sky is known by few remaining Elders and tradition bearers. The Traveler constellation is not only a world custodian but also a teacher, ally, gamekeeper, and the embodiment of the world. These large constellations (sometimes covering the entire sky) composed of numerous smaller groups of stars named after body parts have deep antiquity in the Dene family. Chris Cannon has been involved with language and cultural documentation projects with Northern Dene Elders, speakers, and community members since 2008.

Goto Mercury Planetarium projector with M81, M82 in background
Planetarium Planetarium projector with M81, M82 in background


  • 2022 PPA Mini Grant recipients have been selected. Find out who....

  • NASA Resource Page for Planetariums - October 2022 resource of the month added

  • The Pointer, a PPA magazine published from 1968 t0 1970, will be appearing on this site's Publications page. The first six issues are available now.

  • IDEA Committee statement.

  • You can now make DONATIONS to PPA. See below.

Support the PPA!

You may support PPA projects, including the Mini Grant program, by contributing with credit card, debit card, or Paypal using this Donate button:

Alternatively, send a check made out to Pacific Planetarium Association to Alan Gould, PPA Treasurer, 1256 Spruce St, Berkeley CA 94709 .

To become a PPA member, see the PPA Membership page.

M13 image by Rich Lohman
M13 image by Rich Lohman

The Pacific Planetarium Association would like to acknowledge the life and legacy of Dale Etheridge, founding member of the PPA, who has passed on, but remains with us in memory.

PPA is an affiliate of the International Planetarium Society. Recordings of recent IPS virtual conferences are on the IPS youtube channel.

PPA is also one of the associations in the Western Alliance of Planetarium Associations (also known as Western Alliance Conferences or WAC).