Name ______

Chapter 1 Homework

1. After a new moon, about how long is it until a 1st quarter moon?
2.If there is a full moon visible from Paris one evening, what would you see twelve hours later in Australia?
3.What lies in the sky directly above the Earth's equator?
4.Why do all celestial objects rise in the East and set in the West?
5.In which season is the Earth closest to the Sun?
6.What is the equinox”
7.When the Moon and the Sun lie exactly in the same direction in the sky, what phase of the Moon would you see?
8.When does the full Moon rise?
9.On what date/s does the Sun rise exactly due east and set exactly due west?
10.In the Northern Hemisphere, between what dates does the location of the Sun's rising and setting shift a little farther north each day?
11.Why do the constellations that are visible in the sky at night change with the seasons?
12.What is the ecliptic?
13.What causes the seasons?
14.Where is the sun located during the equinoxes?
15.Which phase is the Moon in if it sets at sunset?
16.When does the full Moon phase occur?
17.When does the new Moon phase occur?
18.Which phase of the Moon do you expect to see high in the sky at midnight?
19.Which phase of the Moon do you expect to see rising at dawn?
20.If the Moon sets at 10 a.m. today, approximately what time did the Moon set yesterday?
21.During which phase of the Moon do you expect to observe a lunar eclipse?
22.During which phase of the Moon do you expect to observe a solar eclipse?
23.Suppose that the Earth's spin suddenly reverse direction, but the direction of the Earth's motion around the Sun was preserved. What changes would you expect to observe?
24.Relative to the stars, the Moons orbital motions move in which compass directions?
25.The yearly motion of the Sun relative to the stars moves in which compass directions?
26.During a solar eclipse, which object casts the shadow and where does the shadow fall?

27.Why don’t we have a lunar eclipse every full Moon?

28.Where are lunar eclipses visible?

29.Where are solar eclipses visible?

30.What color does the Moon generally appear at totality

31.What is the maximum number of eclipses that can occur in a year?
32.Eclipses generally occur in pairs. When a solar eclipse takes place how long either before or after will a lunar eclipse take place?

33.When do annular solar eclipse occur?

34. If the Earth turns one full rotation in 24 hours, how many degrees per hour does the sky turn?

35. From a latitude of 35°, what is the highest and lowest altitude above the horizon of the noon sun? what will the altitude be on March 20?

36. How many astronomical units (AUs) are there in a light year (ly)?

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