First Friday at Elfreth's Alley: Historic Astronomy

Join us at Elfreth's Alley for First Friday, where we'll be chatting about historic astronomy and the critical role Philadelphia played in some of the earliest explorations of the stars. Learn about historic telescopes, what the night sky would have looked like in the 1700s, and how prominent residents of the Philadelphia region advanced early astronomy. Tour the museum house for free and enjoy time in our garden!