Gravity and Space

2. the range of wavelengths or frequencies over which electromagnetic radiation extends.
3. a graph that plots stars.
9. a grouping of stars that has a name and forms a pattern
12. a large body of matter that makes up something.
13. a mass of gas that is being formed into a star.
14. the brightest star in the night sky.
15. and explosion of a star.
17. and object that is made up of ice and dust that has a tail of gas particles.
20. a small body from space that enters the earth's atmosphere
23. a system of two stars that revolve around each other under the gravitation of both.
24. a place in space where gravity pulls so much that even light can not get out.
25. a small rocky body that orbits the sun.

1. the angle between the Earth at one time of year, and the Earth six months later, as measured from a nearby star.
4. a very large star of high luminosity and low surface temperature.
5. when two nuclei join to form a single nucleus.
6. a very small dense star that looks like a planet.
7. rapidly spinning neutron star.
8. a large disc-shaped cloud of gas and dust from which planets, the sun, and other bodies of a solar system are formed.
10. formed when a huge star runs out of fuel and collapses.
11. how bright an object appears in the sky from Earth.
16. the apparent magnitude an object would have if it were located at a distance of 10 parsecs.
18. a galaxy where the stars and gas clouds are formed in one or more spiral arms.
19. a force that drags objects and organisms to the center of earth.
21. matter that stays at rest or moves in the same straight line unless it is acted upon by a force.
22. a black hole that feeds on gas and the center of distant gravity.