Stars

5. astronomers study these to learn about the properties of stars.
7. this is the apparent shift in position of an object when viewed from two different places.
9. this is the distance of about 9.5 trillion kilometers that light travels in one year (2 words).
10. the Big Dipper is part of this constellation (2 words).
11. even though this star has an absolute magnitude greater than that of Sirius, it looks dimmer from Earth since it's 100 times farther away.
12. the North Star is in this constellation (2 words).
14. relatively cool stars look either orange or this color.

1. these are groups of stars that form patterns.
2. the actual amount of light that a star gives off (2 words).
3. this is the brightest star in the sky.
4. our Sun is a star of this color.
6. this is the amount of starlight received on Earth (2 words).
8. this is another name for the North Star.
13. this constellation, named after a mythical hunter, includes the star Betelgeuse.