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The Easter Calendar and The Spring Sky

1871 Old Main Drive,
Shippensburg, PA 17257
(717) 477-1491
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Our traditional spring star show. We'll use the star projector to look at the spring sky and discuss how the motions of the heavens are used to mark time, the seasons and set events on our calendar. As an example, we'll discuss the 35 possible dates of Gregorian Easter. We'll learn why this holiday moves and how a simple rule lets us easily determine its date.

The Dibert-Roddick Planetarium is located in the Franklin Science Center on the campus of Shippensburg University.

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