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Astronomy Test Review

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Submitted By Riku9003
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1. When does the full moon rise? a. sunset 2. Why do we see different constellations in different seasons? b. 3. What is the reason for the seasons? In other words, why is summer warmer than winter, etc. c. because the Earth’s axis is tilted about 23.5 degrees 4. What are the approximate dates of the equinoxes and solstices? Summer Solstice | June 21 | Winter Solstice | December 21 | Autumn Equinox | September 21 | Spring Equinox | March 21 | 5. What season is the Sun seen highest in the sky at noon? Lowest? d. Highest – June 21st –Summer Solstice- at noon e. Lowest – December 21 – Winter Solstice- (at noon?) 6. Suppose you see a certain star rising in the east at 9pm tonight? When will it rise tomorrow night? f. 4 minutes earlier -8:56 pm – the next sidereal day 7. What does the word sidereal mean? what is a sidereal day? g. Anything relative to the stars – The time is takes for a start to come up in the same position in the sky the next day (approx. 23 hours 56 minutes) 8. Are we closer to the sun in winter or in summer? h. Winter 9. What is the ecliptic? What are the two ways of using it to describe Earth or the Sun seen from the Earth. i. The path of the sun’s motion as seen from the Earth throughout the year j. It’s the plane of Earth’s orbit is space 10. Define heliocentric and geocentric. k. heliocentric- Sun was center of the solar system – proposed by Copernicus l. geocentric – earth-centered model, idea that moon, sun, stars, revolve around earth 11. What is the celestial sphere? What are the major lines (circles) and important points on it? m. it’s as if we expanded the earth’s equator and north/south poles out into space. n. Celestial equator, North Celestial Pole, South Celestial Pole 12. When is the Sun

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