Fall Astronomy

4. a giant cloud of dust and gas in space
6. meteor shower in november
9. A planet that freely floats between stars or one that orbits a star outside our solar system
11. Bright glows and bands of light that appear in the skies at night near the North Pole. They are also called the northern lights
13. Compact area in the center of a massive galaxy that is around a supermassive black hole
15. the study of everything in the universe
16. object that is sufficiently massive that it can ignite the fusion of elements in its core due to the gravitational pressures inside the object itself

1. cosmic snowballs of frozen gases, rock, and dust that orbit the Sun in eliptical orbits
2. A donut-shaped ring of icy objects beyond the orbit of Neptune. Pluto is the best known of these icy worlds
3. a place in space where gravity pulls so much that even light can not get out
5. All of space and time, and everything in it
7. A very dense star, it has very powerful gravitational force nearby because the whole mass of a star is pulled into one object just a few miles across
8. The outer atmosphere of a star
10. collection of many stars held together by gravity
12. composed of particles that do not absorb, reflect, or emit light, so they cannot be detected by observing electromagnetic radiation
14. technically any object that orbits another object, normally refered to objects that orbit planets