Astronomy Crossword

2. The attractive force between two objects
4. The stages that are caused bny the position of he moon
8. The path of an object as it revolves around another object in space
10. The two days of the year on which the noon sun is directly overhead at either 23.5 degrees South or 23.5 degrees North
11. The magnetic field of a planet
13. The rise or fall of the level of water in the ocean
15. Body of ice and dust in orbit around the sun that develops a tail of ions and dust as it approaches the sun
17. The cloud of gas and dust that formed our solar system
19. The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
21. An imaginary line that passes through Earth's center and the North and South poles
22. The study of moons, stars, and other objects in space

1. The two days of the year on which neither hemisphere is tilted toward or away from the sun
3. The ___________ is made up of different gasses
5. A device built to study distant objects and make them appear closer
6. A _______ is the object that follows its own orbit
7. The measure of the distance from the equator, expressed in North or South
9. The day of the year that marks the beginning of spring in the Northern Hemisphere
11. A mass of rock that enter Earth's atmosphere
12. The blocking of sunlight th Earth that occurs when the moon is between the sun and Earth
14. The Milkyway is a ...
16. The partial or total blocking of one object by another
18. Distance light travels in a vacuum
20. A round pit on the moon's surface