Pennsylvania Observatories AI^2 Observatory Private Observatory Airglow Observatory Private observatory Allegheny Observatory Observatory of the University of Pittsburgh Bel Tor Observatory Private Observatory Big Woodchuck Solar Observatory Private Observatory Blue Bell Campus Observatory Observatory for Montgomery County Community College Blue Mountain Vista Observatory Private Observatory Bradstreet Observatory Observatory for Eastern University Breezy Hill Observatory Private Observatory Bruce M. Bedow Memorial Observatory Observatory for the Oil Region Astronomical Society Bucknell Observatory Observatory for Bucknell University Camp Susque Observatory Observatory for Camp Susque Carlson R. Chambliss Astronomical Observatory Observatory for Kutztown University Cunningham Observatory Historic Observatory for Swarthmore College Dark Side Observatory Private Observatory Davey Lab Observatory Observatory for the Pennsylvania State University Discovery Observatory Private Observatory East Stroudsburg University Observatory Observatory for East Stroudsburg University Edward L. Naylor Astronomical Center & Observatory Observatory for the Astronomical Society of Harrisburg Emmaus Observatory Observatory for East Penn School District Far From Ideal Observatory Private Observatory Fisher Science Observatory Observatory for Susquehanna University Friedman Observatory Observatory for the Pennsylvania State University Wilkes-Barre George P. McCook Observatory Observatory for Villanova University Gettysburg College Observatory Observatory for Gettysburg College Grove City College Observatory Observatory for Grove City College Grundy Observatory Observatory for Franklin & Marshall College HAO Observatory Private Observatory Henry Buhl, Jr. Observatory Observatory for the Carnegie Science Center HillView Observatory Private Observatory Holt & Miller Observatory Observatory for the Franklin Institute John C. Rudy County Park Observatory Observatory for the York County Astronomical Society Joseph R. Lynch Observatory Observatory for Drexel University Lincoln University Observatory Observatory for Lincoln University Mars Observatory Private Observatory Meadowgold Mobile Observatory Private Observatory Mehalso Observatory Observatory for the Pennsylvania State University Behrend Michael L. Britton Memorial Observatory Observatory for Dickinson College Mingo Creek Park Observatory Observatory for the Amateur Astronomers Association of Pittsburgh Mountain Lion Observatory Observatory for Fort Roberdeau Mt. Chestnut Observatory Private Observatory Newton Memorial Observatory Historic Observatory for Allegheny College Nicholas E. Wagman Observatory Observatory for the Amateur Astronomers Association of Pittsburgh Paul E. Hickes Observatory Observatory for Juniata College Penn Observatory Observatory for the University of Pennsylvania PennWest Edinboro Observatory Observatory for Pennsylvania Western University Edinboro Peter van de Kamp Observatory Observatory for Swarthmore College Pottsville Area High School Observatory Observatory for Pottsville Area High School Pulpit Rock Observatory Observatory for the Lehigh Valley Amateur Astronomical Society RM Observatory Private Observatory Ryan Observatory Observatory for the Rittenhouse Astronomical Society Saint Vincent College Observatory Observatory for Saint Vincent College Scopeacabana Observatory Private Observatory Seneca Valley Intermediate High School Observatory Observatory for Seneca Valley School District Shippensburg University Observatory Observatory for Shippensburg University South Mountain Observatory Observatory for the Lehigh Valley Amateur Astronomical Society Sproul Observatory Historic Observatory for Swarthmore College StarEffects Observatory Private Observatory StarGlider Observatory Private Observatory Strawbridge Observatory Observatory for Haverford College Sunset Observatory Private Observatory Thomas G. Cupillari '60 Observatory Observatory for Keystone College Very Small Array Observatory for the SETI League Walnut Street Observatory Private Observatory West Chester University Observatory Observatory for West Chester University Westminster Observatory Observatory for Westminster College Widener Observatory Observatory for Widener University
