21st Century Astronomy
21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 2.1, Problem 2.1ACYU
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Because of the precession of the Earth’s axis,   a. there are four seasons, spring, summer, fall, and winter.   b. the Earth receives more solar radiation in the summer than in the winter.   c. Polaris will not be the North Star in about 12,000 years.   d. the lengths of the Earth’s days and nights vary throughout the year.
Some Canadians troups are sent (as part of a U.N. peacekeeping force) to a country located on the Earth's equator. At night, when homesickness makes them gaze sleeplessly at the stars, which of the following will be familiar to them (the same as the equator in Canada) 1. The celestial poles are on the north and south points of the horizon. 2. The celestial equator is overhead and passes through the zenith. 3. All stars rise and set ( no star in the sky all night long) 4. All stars are above the horizon exactly half a day. 5. None of the Above
1. The big dipper is part of A. URSA major B. CANIS major C. AQUARIUS D. LIBRA 2. The appearance of this constellation in the East is the first sign of spring A. SCORPIO B. LEO C. PAGASUS D. VIRGO 3. What is the red star in the constellation orion? A. SIRIUS B. BETELGEUES C. RIGEL D. LEO In the United States when can you see the orion in the evening? A. Summer B. winter C. Spring D. All year rounds 5. What is the largest constellation? A. Andromeda В. Нydra C. Orion D. Ursa Minor 6. The very bright stars alpha Centauri and Beta Centauri point towards A. The big Dipper B. The southern cross C. The milky way D. Galaxy 7. Sirius the brightest star of all, is in A. Canis major B. Corona Borealis C. Scorpius D. All of the above 8. The zodiac Marks A. Star cluster that are visible all night B. A ring of the brightest star in the night sky C. The path the sun appears to take through the sky D. None of the above 9. How many official constellations are there? 4. A. 48 В. 8 С. 12 D. 21 10. The…
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