What do the spectra of stars look like, and what can they tell us
about stellar properties? This lecture introduces the idea of stellar
color, gives a brief overview of the history of stellar spectroscopy,
and introduces spectral classification and the main stellar spectral
types OBAFGKMLT.
Recorded 2006 January 13 in 1008 Evans Laboratory on the Columbu ... 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