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Ryan Observatory

Ryan Observatory is an amazing resource in the Muddy Run area that features astronomical sciences. Kids and adults alike will love learning, experiencing, and interacting with this awesome portal to the world beyond our world!

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Ryan Observatory at Muddy Run is a public outreach facility with programming designed for S.T.E.A.M. outreach and featuring astronomical sciences. Located at Muddy Run Park, It is a Constellation Energy Generation LLC property located in Holtwood, Pennsylvania just south of Lancaster.

Ryan Observatory and educational programs are provided by Rittenhouse Astronomical Society under contract with Constellation Energy.

The observatory is open to the public for monthly stargazing and presentations and are open on scheduled private nights for members of Rittenhouse Astronomical Society and others from around the region whose volunteering make programming possible.

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