Astr 101 Chapter 12 Study Guide Graded A+

Which of the following is a valid way of demonstrating parallax for yourself? {Ans: Hold up your hand in front of your face, and alternately close your left and right eyes.}What is the cause of stellar parallax? {Ans: Earth's orbit around the Sun}Five stars are shown on the following H-R diagrams; notice that these are the same five stars shown in Part F. Rank the stars based on their luminosity from highest to lowest. If two (or more) stars have the same luminosity, drag one star on top of the other(s) {Ans: Highest to Lowest: Two right dots stacked on top of each other, Middle dot in the middle, Two low dots stacked on top of each other.}Fomalhaut is an A star with a luminosity 14 times that of the Sun. Fomalhaut is therefore a {Ans: Main sequence star}Five stars are shown on the following H-R diagrams. Rank the stars based on their surface temperature from highest to lowest. If two (or more) stars have the same surface temperature, drag one star on top of the other(s). {Ans: Highest to Lowest: Dots that are furthest to the left to the dots that are furthest to