Great Western Observer (GWO)

Latest Edition of GWO

Past Editions of GWO

GWO is the publication of the Western Alliance Conferences (WAC), serving all four western region planetarium organizations:

    • PPA (Pacific Planetarium Association),

    • RMPA (Rocky Mountain Planetarium Association),

    • GPPA (Great Plains Planetarium Association) and

    • SWAP (Southwest Association of Planetariums).


Predecessor to the GWO was the PPA Panorama

PPA Conference Proceedings

There is also a PPA electronic mailing list moderated through Karl von Ahnen <>.