This unit introduces the basics of mapping the sky. It also helps clarify the motion of the Earth particularly with reference to the night sky and the motion of the stars. A description is included on how this impacts our measurement of time.

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This lesson is part of the Athabasca University Astronomy 230: Northern Lights, Northern Skies course. In this lesson, you will learn how to describe the shape of the Earth and the relative position of the poles
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This lesson is part of the Athabasca University Astronomy 230: Northern Lights, Northern Skies course. In this lesson, you will learn how to identify what causes days and years, how to describe the structure and reasons for time zones, and how to describe what causes the seasons.
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This lesson is part of the Athabasca University Astronomy 230: Northern Lights, Northern Skies course. In this lesson, you will learn how to describe the advantages of the altitude-azimuth system of reference and the equatorial coordinate system of reference, and how to describe how to determine the location of a star in the sky using both the altitude-azimuth system and the equatorial coordinate system.
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This lesson is part of the Athabasca University Astronomy 230: Northern Lights, Northern Skies course. In this lesson, you will learn how to describe the concept of the celestial sphere, and how to describe circumpolar motion.
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Unit 1 - Lesson 5: Constellations

by Athabasca University

This lesson is part of the Athabasca University Astronomy 230: Northern Lights, Northern Skies course. In this lesson, you will learn how to identify constellations in the northern hemisphere.
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