Short Presentation: Allen Royston: Digital setting circles! Why would you want them on your telescope? How to retrofit your telescope with a "Push-To" upgrade. A demo of the AstroDevices Nexus and Sky Safari system.
Main Presentation: John Carpenter: The Electromagnetic Spectrum The visual part of the spectrum (all our eyes can see) is just a tiny sliver of the entire electromagnetic spectrum. What are the other parts? What parts of the spectrum do the objects in the universe emit? How do we see them, if they do not emit visible light? Let begin an exploration of this basic, but quite complex, area of astrophysics.