Name:
Period:
Chapter 28.2 Topic questions
1. Star “Trails” in a time lapse image are evidence of the movement of the ______________.
2. The “real” name of the North Star is ______________.
3. Stars and constellations that are in the part of the sky surrounding the North Star are called
______________ stars or constellations.
4. The North Star is found in the ______________ constellation.
5. Why are constellations not real?
6. Define “Parallax”.
7. What do astronomers use Parallax for?
8. The average distance between the Earth and the Sun is called a/an _____________________.
9. Light from the Sun takes how long to reach the Earth?
10. The distance that light travels in a year is called a/an ________________________________.
Why is this unit of measurement used for objects that are outside of our solar system.
11. A light year is a unit of (a. time b. distance)
12. Define Apparent Magnitude:
13. Define Absolute Magnitude:
14. Define Luminosity:
15. How far does light travel in 4 years?
16. How do planets differ from Stars?
17. Identify at least five ways in which stars differ from one another.
18. Why do we not use astronomic units outside of our own solar system?
19. How close it the nearest star to our own?
20. How do stars create heat?
21. The color of a star depends on its temperature at its ________________________________.
22. The more “fuel” a star consumes at a time, the __________ (a. cooler
the _____________________ its “life-span” will be.
23. The hottest stars are _________. (a. red
b. bluish white)
b. hotter) it will be, and