Radio Astronomy and Solar Observing at Astronomical Society The York County Astronomical Society (YCAS) will be offering an event at their Observatory at John Rudy County Park, 400 Mundis Race Road, York, on Saturday, July 18, 2026. Solar and Radio Astronomy from noon - 3:00PM. Society member Kerry Smith will be presenting the radio astronomy portion of the event as well as giving attendees a peek into the future of the Society’s radio astronomy endeavors. ...

The York County Astronomical Society (YCAS) will host a Starwatch event at their Observatory at John Rudy County Park, on the second Saturday of the month, at 8:00PM to 10:00PM to view the night sky through our telescopes. Expand your mind by taking in the expanse of the universe. Come view the evening sky with us through one of our telescopes. Let our experienced members guide you on a tour of celestial wonders, including stars, and nebulae. ...

The York County Astronomical Society, celebrating 20 years offering planetarium programs to the public, now offering Saturday afternoon and evening programs at the York Learning Center Planetarium. Saturday, September 19, 2026 2:00PM - One World, One Sky: Big Bird’s Adventure (pre-K to 1st grade) 2:40PM - StarWatch 3:20PM - Mars: The Ultimate Voyage (4th to 8th grade) The planetarium is located in the York Learning Center at 301 East 6th Avenue, York PA. ...

The York County Astronomical Society, celebrating 20 years offering planetarium programs to the public, now offering Saturday afternoon and evening programs at the York Learning Center Planetarium. Saturday September 19, 2026 7:00PM - From Earth to the Universe 7:40PM - StarWatch 8:20PM - Big Astronomy The planetarium is located in the York Learning Center at 301 East 6th Avenue, York PA. Admission is $6.00 for adults, $5. ...

Join us for Astronomy 101, a public lecture series featuring engaging talks by experienced speakers covering the fundamentals of astronomy and modern space science. Each session is designed for general audiences, with time built in for questions and discussion. Who Should Attend? Beginners with no prior astronomy background, Amateur astronomers and space enthusiasts, families, students, and lifelong learners. Come explore the universe—one Saturday night at a time. Event Details: * starting September 12, 2026 @6pm * class at John Rudy Park Observatory ...

WELCOME TO THE YCAS RADIO OBSERVATORY OUR 3 METER RADIO TELESCOPE IS OPERATIONAL FIRST LIGHT: in the early morning hours on October 31st 2024 we achieved first light. Observing in the spectral mode we captured some very nice concentrated areas of neutral hydrogen in the region of Orion. The three peaks you see in this spectrograph are three arms of our Milky Way galaxy! OPERATIONAL BUT NOT COMPLETE: although operational there’s still much work to be done to complete the project from mechanical and software upgrades to final touches in the control room. ...