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Name ____________________________ Chapter 26 Review Section 1 1) What is a constellation? 2) What are the 3 types of telescopes? 3) What are the two different types of optical telescopes? Which uses mirrors? Which uses lenses? 4) What is the Hubble Telescope? Section 2 5) What is a star? 6) What is parallax? 7) What is a nebula? 8) What is a main sequence star? Approximately how many stars are main sequence? 9) What is fusion? 10) What are giant stars? 11) What is a white dwarf? 12) What is a supernova? 13) What is a black hole? 14) What is the classification of our sun? 15) What is an H-R Diagram. (be able to interpret an H-R diagram) 16) List in order the colors of stars from hottest to coolest. 17) What is a binary star system? 18) Draw the layers of the sun. 19) What is a sunspot? Are sunspots permanent? Explain why or why not. 20) What is a prominence? 21) What is a solar flare? Section 3 22) What is a galaxy? 23) What are the three classifications of galaxies? What do each look like? Which is most common? 24) What shape is the Milky Way? 25) What is the local group? 26) How many stars are in the Milky Way? 27) Approximately how big is the Milky Way 28) The largest known galaxy is what type of galaxy? 29) What is a light year? Section 4 30) What is cosmology? 31) How old is the universe? 32) What is the Big Bang Theory? 33) What is red shift?