2. 1. ____________________- radiant energy transferred by waves; includes x-rays, visible colors, ultraviolet, infrared, microwave and gamma rays electromagnetic spectrum
3.
4.
5. 2. ____________________- first type to be developed; uses a convex lens; bigger the lens, less accurate refracting telescope
12. 6. _____________- star pictures in the night sky 7. ________ _________- how bright a star appears from Earth 8. ________ _________- the actual brightness of a star constellations apparent brightness absolute brightness
13.
14. 9. ________- the distance light travels in a year (light speed = 186,000 mps) light year
15. 10. ________- apparent change in position of an object when you look from different places parallax
16. 11. ____________- a graph that relates the temperature and absolute brightness of stars H-R diagram
21. "For the eyes of the Lord run throughout the whole earth to show Himself strong in behalf of those who are fully committed to Him." THIS IS A PICTURE NASA TOOK WITH THE HUBBLE TELESCOPE.. IT IS SIMPLY CALLED "THE EYE OF GOD".
22. 14. _________- a contracting cloud of gas and dust with enough mass to form a star protostar
23. 15. ____________-dense core of dying star (so dense that one spoonful on Earth would weigh several tons ) white dwarf
29. 21. ______________- when two stars orbit each other binary system 22. _______________- a system in which one star periodically blocks the light from another eclipsing binary
30. 23. __________- loose, disorganized area with only a few thousand stars; _________ _______- large grouping of older stars open cluster globular cluster
46. 1. Earth compared to the smaller planets (Venus, Mars, Mercury and Pluto): 1. Earth compared to the smaller planets (Venus, Mars, Mercury and Pluto):
47. 2. Earth compared to the larger planets (Jupiter, Saturn, Uranus and Neptune):