Night Sky - Navigating the Constellations

Night Sky - Navigating the Constellations
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Seeing and Navigating the Sky
Episode 2 of Our Night Sky
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…
The Constellations and Their Stars
Episode 1 of Our Night Sky
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.
Origins of Western Constellations
The human propensity for pattern recognition and storytelling has led every culture to invent constellations. Trace the birth of the star groups known in the West, many of which originated in ancient Mesopotamia. At least one constellation is almost certainly more than 14,000 years old and may be humanity's oldest…
Chinese and Other Non-Western Constellations
Study the constellation patterns of ancient China, which influenced those of India and Arabia. Professor Schaefer dates the origin of the Chinese star groups called lunar lodges, and he samples southern constellations conceived by cultures in South America, and Australia.
Our Night Sky
For thousands of years, the star-filled sky has been a source of wonder, discovery, and entertainment. All you need to feel at home in its limitless expanse is Our Night Sky, a richly illustrated 12-episode course that gives you an unrivaled tour around the sky--all while teaching you about the…
The Northern Sky and the North Celestial Pole
Episode 7 of Our Night Sky
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.
The Fall Sky
Episode 8 of Our Night Sky
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.
The Winter Sky
Episode 9 of Our Night Sky
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…
The Spring Sky
Episode 10 of Our Night Sky
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.
The Summer Sky
Episode 11 of Our 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…
The Southern Sky and the Milky Way
Episode 12 of Our Night Sky
In this final episode, 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…
Radio Astronomy - The Alma Telescope
Part of the Series: Show Me Science Series - Advanced
The Atacama large Millimeter/Sub-millimeter Array, or ALMA, is a vast array of radio telescopes and the most powerful observatory of its kind. ALMA is stationed in the Atacama Desert of Chile which is one of the world's best sites for observational astronomy because of the high altitude, nearly non-existent cloud…