A young observer peers through the CAA's vintage Celestron 16 telescope.
PUBLIC EVENTS
The CAA hosts at least 12 Saturday Public Observing events featuring a guest speaker that is followed—weather permitting—by celestial viewings through telescopes at the facility. During viewing hours, society members will be available to answer questions and provide everyone with an opportunity to look through the Society's telescopes and those of our members.
This site will be updated through out the year as we assemble our speakers and events.
2019 Presentations
April 27, 8:00 p.m.
Mr. Brent Studer
CAA Member
Cosmic Mayhem: Supernovae, Active Galactic Nuclei, and Other High-Energy Events That Have Shaped Earth's HIstory.
May 25, 8:30 p.m.
TBA
June 22, 9:00 p.m.
TBA
July 13, 3:00 p.m. -- Solar Day
Mr. Carl Bracken
Cedar Amateur Astronomers
Our sun and solar cycles
July 20, 8:30 p.m.
Prof. Ken Gayley
University of Iowa, Department of Physics and Astronomy
Does the Earth really orbit the Sun? The Importance of Perspective.
A famous debate between Galileo and the authorities of the day seemed, on the surface, to be about whether the Earth orbits the Sun or the Sun orbits the Earth. Since then, we have discovered that the stakes of that debate were actually quite different, and quite a bit more important, but the issue of what orbits what does not exhibit the character of a physical truth. Understanding what is a physical truth, and how our perspective relates to our understanding, is a valuable tool in modern astronomy, and has deeper philosophical implications that we will explore.August 3, 8:30 p.m.
TBA
August 24, 8:00 p.m.
TBA
September 21, 7:30 p.m.
TBA
October 19, 7:30 p.m.
TBA
November 30, 7:30 p.m.
TBA
2019 Past Presentations
March 30, 7:30 p.m.
Prof. Steve Spangler
University of Iowa, Department of Physics and Astronomy
Star Clusters: Cities of Stars
Public observing events are held in the Eastern Iowa Observatory and Learning Center at the Palisades-Dows Observatory and Preserve through a generous agreement with the Linn County Conservation Department. For directions, please visit our Map to Pal-Dows page or download a pdf version (276 kB.)
The Cedar Amateur Astronomers, Inc. is a participating member of Night Sky Network.
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