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Free Public Observing Night

The York County Astronomical Society* (YCAS) will be offering a FREE Public Observing Starwatch at their Observatory at John C. Rudy County Park on Saturday, May 14th, 2016, 8:00PM-10:00PM. See: Public Observing

Planetarium Shows

The York County Astronomical Society is now offering Saturday afternoon programs for young children and families and Saturday evening for older family members at the York Learning Center Planetarium. This month we are featuring a new childrenís program, One World, One Sky: Big Birdís Adventure and a new older family member program Chasing the Ghost Particle. See: Planetarium



The image below was taken by YCAS member Mike Wenz on 3/19, 2016 at 12:49 am. Image taken with a 10-inch Newtonian telescope and a Skyris 236M CCD  camera with a 2.5x TeleVue PowerMate barlow
400 out of 3000 images stacked with AutoStakkert2! and then processed in Registax6 and Gimp 2.8.


Observing The Moon

Below is an image of the lunar crater Schiller taken by YCAS member Mike Wenz. It was taken at the YCAS observatory at John Rudy Park in York, PA using the York County's LX-200 telescope and his  DMK21AF04 CCD camera. The images were stacked using around 1000 exposures out of 1500 exposures and processed using Registax. See: Lunar images


YCAS Member Discovers Asteroids

YCAS member John Sachs discovered two new unknown asteroids. For more information of discovery and animations see: Discovery



Imaging The Moon

Below images by Michelle Wenz showing sunrise on the Lunar surface. Animation was made from Michelle's images. See More here: Lunar Sunrise

York County, Adams County, Pennsylvania Astronomy The Scout Merit Badge Program

I stood and stared; the sky was lit,
The sky was stars all over it,
I stood, I knew not why,
Without a wish, without a will,
I stood upon that silent hill
And stared into the sky until
My eyes were blind with stars and still
I stared into the sky. --Ralph Hodgson (1913)

The York County Astronomical Society, Located in York, Pennsylvania

The York County Astronomical Society, Inc. is a non-profit organization dedicated to the advancement of the science of astronomy.

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