The Constellations and Their Stars

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The Winter Sky
Episode 9 of Our Night Sky Series
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…
Night Sky - Navigating the Constellations
This program describes the specific patterns of stars in the night sky. In compelling, easy to understand animations, students will be able to decode the constellations and other important celestial bodies. Ancient astronomers described how constellations might appear in different seasons in various parts of the World. This program also…
The Northern Sky and the North Celestial Pole
Episode 7 of Our Night Sky Series
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 Series
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 Summer Sky
Episode 11 of Our Night Sky Series
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…
Seeing and Navigating the Sky
Episode 2 of Our Night Sky Series
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…
Compact Multiplanet Systems
Dig deeper into the treasure trove of data from the Kepler mission, which discovered hundreds of compact multiplanet systems, with planets much more closely packed than in our solar system. Explore the dynamics of these groupings, which have planets interacting strongly through mutual gravitation.
Living with a Dwarf Star
The most common stars are class M dwarf stars, which are smaller and less luminous than the Sun (class G). Earth-sized planets are much easier to detect around M-dwarf stars, especially if the planets are within the relatively close-in habitable zone. Explore examples and the prospect for life on such…
Our Night Sky Series
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 Sagittarius Star Cloud
Episode 3 of Experiencing Hubble
Hubble's view of a tiny region of the Sagittarius Star Cloud has an astonishing 12,000 stars. Study this dazzling image and learn how its unprecedented resolution is helping to chart the stellar history and evolution of the Milky Way galaxy.
The Billion-Year Battle
Explore the physics of stars, which are balls of gas in a billion-year battle between the inward pull of gravity and the outward pressure produced by nuclear fusion. Follow this story to its ultimate finish--the triumph of gravity in massive stars that end their lives as black holes.
The Misplaced Giant Planets
Investigate 51 Pegasi b, the first planet detected around a Sun-like star, which shocked astronomers by being roughly the size of Jupiter but in an orbit much closer to its star than Mercury is to the Sun. Probe the strange characteristics of these "hot Jupiters," which have turned up around…