Chapter 2

# Chapter 2 - Phys 107 Dr Hauck Chapter 2 Homework 1 A...

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Phys 107 Dr. Hauck Chapter 2 Homework 1. A constellation is a region of the sky with well-defined borders. Many of the names of constellations are based on rich folklore told by the people of nearly every culture. 5. We can measure only angular sizes and angular distances for objects in the sky because out lack of depth perception on the celestial sphere means that we have no way to judge the true sizes or separations of the objects we see. One arcminute is 1/60 of 1°. One arcsecond is 1/60 of an arcminute, or 1/3,600 of 1°. 6. Circumpolar stars are stars that always remain above the horizon for a particular latitude. More stars are circumpolar at the North Pole because stars relatively close to the north celestial pole remain perpetually above the horizon. They never rise or set but instead make daily counterclockwise circles around the north celestial pole. 7. Latitude and longitude are how we locate points on Earth. Latitude measures north- south positions on Earth and is defined by 0° at the equator and increases northward and southward. Longitude measures east-west positions. The sky varies with latitude, but not

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Chapter 2 - Phys 107 Dr Hauck Chapter 2 Homework 1 A...

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