Astronomical Phenomena

2. Ancient astronomers such as _____ were aware to the precession of the equinoxes.
3. ______ have been identifying patterns of the stars thousandsting constellations for thousand of years.
6. This is when planets move across the sky
7. Comet, with their distinctive _____
11. The position of stars and constellations shift due to Earth's precession. What is this?
13. They interpret the appearance of comets as what?
15. The invention that made astronomers explore the night sky more is called what?
17. It is the pattern of the stars
19. What is the event when the appearance of a new, exceptionally bright star in the night sky was noted by ancient astronomers.
20. It is when multiple meteors appear to radiate from a specific point in the sky

1. The changing position of the sun causes what?
4. Constellations also served as ____ purposes
5. They often interpreted the appearance of these as omens
8. What is a exceptionally bright star?
9. Earth casting shadow on the moon is ____ eclipse
10. It is the faint, triangular glow of sunlight scattered by interplanetary dust along the solar system.
12. Astronomers relied on these observations to study the night sky before the telescopes were invented.
14. This is when either when moon passes the sun or the earth.
16. Whaeclipsees the sun during a lunar eclipse
18. Earth casting _____ on the moon on lunar eclipse