This talk will describe the importance of spectroscopy in astrophysics and cosmology. It will use the analogy of a barcode to show how the spectrum of a star tells you about the temperature of the star, and can be used to work out its distance and its size. The talk will be illustrated with a range of demonstrations including spectral lamps. A spectrograph which is used in conjunction with the telescope at the University of York observatory will be demonstrated.
8pm, Priory St.
On Friday YAS had its AGM and selected a new committee. Our new Chairman is Martin Whipp, and the full list is on the committee page. We also now have full events and meeting details for the rest of 2009 up on the events page.