Pennsylvania Clubs Allegheny Highland Astronomical Society Astronomy Society in Ridgway Amateur Astronomers Association of Pittsburgh Astronomy Association in Pittsburgh Amateur Astronomers of Beaver County Astronomy Club in Beaver Astronomical Society of Harrisburg Astronomy Society in Harrisburg Astronomy Enthusiasts of Lancaster County Astronomy Club in Lancaster Beaver County Amateur Astronomers Astronomy Club in Beaver Berks County Amateur Astronomical Society Astronomy Society in Reading Bucks-Mont Astronomical Association Astronomy Association in Chalfont Central Pennsylvania Observers Astronomy Club in State College Chautauqua and Erie Astronomical Society Astronomy Society in Erie ChesMont Astronomical Society Astronomy Society in Limerick Chester County Astronomical Society Astronomy Society in West Chester Delaware Valley Amateur Astronomers Astronomy Club in Radnor Erie County Mobile Observers Group Astronomy Group in Erie Greater Hazelton Area Astronomical Society Astronomy Society in Hazelton Kiski Astronomers Astronomy Club in Leechburg Lackawanna Astronomical Society Astronomy Society in Clarks Summit Lehigh Valley Amateur Astronomical Society Astronomy Society in Allentown Manheim Township Astronomy Club Astronomy Club in Lancaster Oil Region Astronomical Society Astronomy Society in Oil City Pennsylvania Wilds Astronomy Club Astronomy Club in Williamsport Rittenhouse Astronomical Society Astronomy Society in Haverford Sir Isaac Newton Astronomical Society Astronomy Society in Altoona Starlight Astronomy Club Astronomy Club in Altoona Susquehanna Astronomical Society Astronomy Society in Brackney Susquehanna Valley Amateur Astronomers Astronomy Club in Lewisburg Warren County Amateur Astronomy Club Astronomy Club in Warren York County Astronomical Society Astronomy Society in York
