Astronomy Vocabulary

1. When Earth or the Moon fully blocks light from the Sun.
3. The outermost part of the Sun’s atmosphere that can be seen during a total solar eclipse.
8. When one celestial body blocks light from another.
13. A gravitational bound system consisting of a sun and the objects that orbit it.
15. An imaginary line passing through the center of Earth, around which the planet rotates.
16. When the view of the Sun from Earth is blocked by the Moon.
17. path of an object around a particular point in space.
18. When Earth or the Moon partially blocks light from the Sun.
19. an astronomical body that orbits a star

2. When the Moon moves into Earth’s shadow.
4. Large region in the solar system past Neptune where Pluto and other dwarf planets orbit sun along with rocks, dust and ice
5. The envelope of gases surrounding Earth or another planet.
6. Objects orbital motion around other objects: Example earth revolves around the sun
7. including planets, stars, galaxies and all other forms of matter and energy.
9. The path Earth takes as it moves around the Sun.
10. Force between two masses which draws objects toward the center.
11. Regular repeating path that one object in spaces takes around another.
12. Region around a star in which an Earth like planet can possess liquid water on its surface and possibly support life.
14. Huge collection of gas, dust and billions of stars held together by gravity.