Watch Our Night Sky

Our Night Sky is a series of lectures on astronomy for people who would like to know more about what they see when star-gazing. The lessons will give a comprehensive overview, then more specifically focus on topics such as asteroids, solar systems, different types of stars, galaxies and tools such as telescopes, binoculars, and other hardware.

The course is geared for beginners and also veteran astronomy buffs who may find new information. The science, technology and culture of the subject is covered.

The lecturer is astronomer Edward M. Murphy of the University of Virginia.

The Great Courses
1 Season, 12 Episodes
June 18, 2010
Documentary & Biography
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Our Night Sky Full Episode Guide

  • In this final lecture, travel to the Southern Hemisphere for sky views inaccessible from northern latitudes. Discover the famous Southern Cross, the Large and Small Magellanic Clouds, and a spectacular panorama of the Milky Way: along with new myths and stories that add a human dimension to our marvelous night sky.

  • Arching high overhead in the summer sky is the Milky Way, which is the plane of our galaxy seen from the inside. Tour this densely packed region of stars of all types, from dusty regions of star birth to the exquisite shells of dying stars. Here, a useful orienting feature is the Summer Triangle.

  • The spring sky opens the view into intergalactic space perpendicular to the plane of the Milky Way. Among the objects visible are the immensely rich galaxy clusters in Virgo and Coma Berenices, which are many millions of light-years distant and can be seen with small and moderate telescopes.

  • Continuing your focus on the constellations of the Northern Hemisphere, survey the magnificent winter sky, dominated by Orion. Star hop around the region, which includes a wealth of interesting stars, globular clusters, nebulae, and other features, especially the Orion Nebula: the finest nebula in the northern sky: and the Pleiades and Hyades star clusters in Taurus.

  • Navigate your way around the autumn sky from the Northern Hemisphere, discovering how the classical myth of Andromeda ties together the stories of the nearby constellations of Cassiopeia, Perseus, Cepheus, Pegasus, and Cetus. The sights include the Andromeda galaxy, the nearest large galaxy to our own.

  • Embarking on the second half of the course in which you systematically tour the entire sky, study two constellations that are continuously in view from the Northern Hemisphere: Ursa Major and Cassiopeia. Also explore the slowly shifting position of true north in the sky.

  • Explore a variety of special phenomena that are among the wonders of the sky. Some, like bright meteors, aurora, and many comets, are largely unpredictable. Others, like eclipses and annual meteor showers, occur at well-known times: although it may require a special trip to see them.

  • The rings of Saturn, the bands of Jupiter, the phases of Venus, the polar caps of Mars: these and other planetary features are visible through a small telescope. Learn when viewing opportunities arise for each of the planets and what sights await the dedicated observer.

  • Charting the motions and changes of the sun and moon may be humankind's oldest astronomical activity. Discover how both objects offer rich opportunities for study. Also learn the precautions to take when observing the sun, which is the only star that can be seen up close and in detail.

  • There are many choices when selecting binoculars or a telescope. Learn what to look for in light-gathering power, optical design, magnification, mounts, and other features. Professor Murphy also suggests several tips for getting the best observing experience out of your equipment.

  • The naked eye is a powerful instrument: if you know how to use it. Learn the best times and conditions for observing, how to identify the positions and magnitudes of stars and planets, how the sky changes over the course of a night, how to use astronomical maps such as a planisphere, and more.

  • Begin your study of the night sky by investigating the origin of the constellations: the traditional groupings of stars that mostly date to antiquity. The well-known constellation Orion illustrates the fascinating mix of beauty, mythology, and scientific knowledge to be found wherever you look in the heavens.

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Our Night Sky is available to watch and stream on The Great Courses. You can also buy, rent Our Night Sky on demand at Amazon Prime, Amazon, Kanopy online.