43 episodes

Astronomy 162, Stars, Galaxies, and the Universe, is part 2 of a
2-quarter introductory Astronomy for non-science majors taught at The
Ohio State University. This podcast presents lecture audio from
Professor Richard Pogge's Winter Quarter 2006 class. All of the
lectures were recorded live in 1008 Evans Laboratory on the OSU Main
Campus in Columbus, Ohio.

Astronomy 162 - Stars, Galaxies, & the Universe Richard Pogge

    • Education
    • 5.0 • 5 Ratings

Astronomy 162, Stars, Galaxies, and the Universe, is part 2 of a
2-quarter introductory Astronomy for non-science majors taught at The
Ohio State University. This podcast presents lecture audio from
Professor Richard Pogge's Winter Quarter 2006 class. All of the
lectures were recorded live in 1008 Evans Laboratory on the OSU Main
Campus in Columbus, Ohio.

    Lecture 05: Distances of the Stars

    Lecture 05: Distances of the Stars

    How do we measure the distances to the stars? This lecture
    introduces the method of trigonometric parallaxes and the
    units of the Parsec and Light Year. Recorded 2006 January 9
    in 1008 Evans Laboratory on the Columbus campus of The
    Ohio State University.

    Lecture 06: The Motions of the Stars

    Lecture 06: The Motions of the Stars

    The "fixed stars" are really in constant motion, but these motions
    are too small to see with the human eye in a human lifetime. This
    lecture introduces proper motions (apparent angular motion of the
    stars in the sky), radial velocities (motion towards or away from
    us measured using the Doppler Shift of the star's spectral lines),
    and true space velocities, measured by combining three key observables:
    the proper motion, radial velocity, and distance to the star. Recorded
    2006 January 10 in 1008 Evans Laboratory on the Columbus campus of
    The Ohio State University.

    Lecture 07: Stellar Brightness

    Lecture 07: Stellar Brightness

    How do we quantify stellar brightness? This lecture introduces
    the inverse square-law of apparent brightness, the relation between
    Luminosity and Apparent Brightness, introduces the stellar magnitude
    system, and discusses photometry and the how we measure apparent
    brightness in practice. Recorded
    2006 January 11 in 1008 Evans Laboratory on the Columbus campus of
    The Ohio State University.

    Lecture 08: Stellar Masses & Radii

    Lecture 08: Stellar Masses & Radii

    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 on the Columbus campus
    of The Ohio State University.

    Lecture 09: Stellar Spectra

    Lecture 09: Stellar Spectra

    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 Columbus campus
    of The Ohio State University.

    Lecture 10: Synthesis: The Herzsprung-Russell Diagram

    Lecture 10: Synthesis: The Herzsprung-Russell Diagram

    How are all of the observed properties of stars (Luminosity,
    Mass, Radius, Temperature and Spectral Type) related to one another?
    This lecture introduces the Herzsprung-Russell Diagram, a plot of
    Luminosity versus Temperature for stars that is our most powerful tool
    for unlocking the secrets of the stars.
    Recorded 2006 January 17 in 1008 Evans Laboratory on the Columbus campus
    of The Ohio State University.

Customer Reviews

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5 Ratings

5 Ratings

Bjørn S1 ,

Extremely interesting lectures!

Listening while traveling, enjoyed every minute

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