How do we measure the masses and radii of stars? This lecture
describes the three basic types of binary stars, and how each are
used to measure the masses of stars. Details of how to measure
stellar radii are beyond the scope of this class, but we briefly
describe the direct measurements of stellar radii.
Recorded 2006 January 12 in 1008 Evans Laboratory ... Show More
Jun 2009
Telescopes that Rocked Our World
This year marks the 400th anniversary of Galileo’s use of the first telescope. On this week’s show, we reflect on how telescopes have shifted our perspective on how small we are in size, space, and time. We also discuss how they help astronomers discover new and interesting aspec ... Show More
56 m