ASTR209 - Lecture 4

ASTRONOMY 209 PODCAST by Rene Plume

Jan 18, 201801:09:11Education

In this lecture we discuss the geocentric model of Ptolemy, the heliocentric model of Aristarchus and how Hipparchus tested it using the concept of parallax. We also saw how to use observations of parallax to measure the...

Related Episodes

Continue listening to more episodes from ASTRONOMY 209 PODCAST.

ASTR209 - Final Review

Apr 13, 2018 - 01:02:26

In this, the final lecture of the semester, I attempt to review the main, salient points of the course. W...

ASTR209 - Lecture 23

Apr 10, 2018 - 00:55:03

In this, the LAST lecture of the semester, we discuss General Relativity and Black Holes.

ASTR209 - Lecture 22

Apr 5, 2018 - 00:59:48

In this lecture we discuss the final stages of the evolution of low and high mass stars. We also learn ab...

ASTR209 - Lecture 21

Apr 3, 2018 - 01:06:57

In this lecture we discuss how a low mass star evolves off the main sequence when it runs out of hydrogen...

ASTR209 - Lecture 20

Mar 29, 2018 - 00:53:25

In this lecture we discuss the formation of planets and the discoveries of exoplanets around other stars.

ASTR209 - Lecture 19

Mar 27, 2018 - 01:06:50

In this lecture we continue to discuss the process of star formation from the fragmentation of a giant mo...

ASTR209 - Lecture 18

Mar 20, 2018 - 01:13:27

In this lecture we discuss the hydrogen spin flip transition that produces radiation at 21cm. We also des...

ASTR209 - Lecture 17

Mar 15, 2018 - 01:06:08

In this class we discuss binary stars and how they are used to determine stellar mass. We then begin to d...