Geosience crossword.

3. an obscuring of the light from one celestial body by the passage of another between it and the observer or between it and its source of illumination.
7. A large planet made of only gassses.
9. A thing that goes around the solar system.
10. This distance from the Sun is called the?
12. a planet that is composed primarily of silicate rocks or metals.
13. the orbital motion of a spatial body in a direction that is opposite of what is normal in a given system.
14. A planet that isn't considered a planet.
16. a fundamental system in condensed matter sciences and the main constituent of gas giant planets.
17. a circumstellar disc in the outer Solar System.
18. a unit of measurement equal to 149.6 million kilometers, the mean distance from the center of the earth to the center of the sun.

1. a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.
2. a celestial event in which a number of meteors are observed to radiate, or originate, from one point in the night sky.
4. small Solar System body that warms and begins to release gases when passing close to the Sun.
5. a small body of matter that enters the atmosphere.
6. a body that could or did come together with many others under gravitation to form a planet.
8. a fragment of spatial matter that falls to the surface of a planet.
11. the quality of being eccentric.
15. a very steep bank or slope.