Skip to Content

Observatory Committee

Events & Volunteering

Upcoming Events

Featured Contributors

Volunteer with Us

Astrophotography

Waldorf School of Philadelphia

Articles & News

Observatory Committee

Events & Volunteering

Upcoming Events

Featured Contributors

Volunteer with Us

Astrophotography

Waldorf School of Philadelphia

Articles & News

Observatory Committee

Folder: STEAM Pages

Folder: Events & Volunteering

Upcoming Events

Featured Contributors

Volunteer with Us

Folder: Gallery

Astrophotography

Waldorf School of Philadelphia

Folder: Articles & News

Houston Astronomical Society Regales Ryan Observatory

Dec 4

Written By Al Ryan

Ryan Observatory by Daniel M. Roy and Debbie Moran

Al Ryan

Catching the Shadow of an Asteroid's Moon

Ryan Observatory
at Muddy Run

172 Bethesda Church Rd W
Holtwood, PA 17532
(717) 284-5856

Rittenhouse Astronomical Society
Muddy Run Park
Constellation Energy Generation LLC

Links