Samantha Olarte - Space Unit, Gravity & Stars

4. large cloud of gas and dust from which the sun, planets, and other solar system bodies formed
8. graph in which the absolute magnitudes of stars are plotted against their spectral types
11. one in which two stars orbit around a common center of mass
12. We often see these as streaks of light in the sky
13. An object's tendency to resist a change in motion
16. This is formed when a massive star runs out of fuel and collapses
17. the brightness measured by an observer at a specific distance from the object
19. the brightest star in the night sky
20. a supermassive black hole feeding on gas at the center of a distant galaxy
22. the apparent magnitude an object would have if it were located at a distance of 10 parsecs
23. the name of a large star with high luminosity & low surface temperature
24. the observed displacement of an object caused by the change of the observer's point of view
25. cosmic snowballs of frozen gases, rock, and dust that orbit the Sun

1. rotating neutron stars observed to have pulses of radiation at very regular intervals
2. the explosion of a star
3. a place in space where gravity pulls so much that even light can not get out
5. a group of stars that forms a particular shape in the sky and has been given a name
6. The complete range of all types of radiation that has both electric and magnetic fields and travels in waves
7. a cloud of gas and dust in space believed to develop into a star
9. any of millions of small celestial objects revolving around the sun
10. the stellar core left behind after a dying star has exhausted its nuclear fuel
14. This typically has a rotating disc with spiral 'arms' that curve out from a dense central region
15. This is often compared to the pull of a magnet
18. typically large body of matter with no definite shape
21. the process or result of joining two or more things together to form a single entity