This event has passed. It took place on Tuesday, April 15, 2025. See Upcoming Events
Astronomy Fundamentals
Past Event Public
A Look at the History of Alvan Clark Telescopes
Presenter: Ed Armstrong
In the 19th century, Alvan Graham Clark was one of the premier lens makers for telescopes. His craftsmanship was sought after and many observatories in the late 19th and early 20th centuries were built to house his refractor telescopes. In fact, smaller Alvan Clark refractors are also sought after by amateur astronomers when they are on the used market.
You have an opportunity to look through a Clark Telescope at the Dearborn Observatory, located at Northwestern (Evanston, IL). The observatory has public viewing on Fridays, weather permitting. And, if you are interested in learning about the history of Alvan Clark refractors, come visit our March fundamentals talk, presented by NAA member Ed Armstrong.
This event is open to the public and free of charge.
Location
Grace United Methodist Church: Room 254
300 E. Gartner Rd. Naperville, IL 60540
Room 254
Park in the upper, north lot for this meeting, and enter at the far-left door as you are facing the building. This door is marked as “Activity Center”. The door will be on a timer, just like the entrance to Fellowship Hall.