Reference no: EM132450673

Question 1: Briefly describe M-1, M-13, M-31, M-42, M-44, and M-57 based on the information in the Sky Guide section of SkyGazer.  Include the object time, the object name, and its distance from Earth.

Question 2: Generally speaking, considering nebulae, galaxies, open clusters, and globular clusters, put these in order based on the distance from Earth.  Which of these are in the halo?  Which are in the disk of the galaxy?

Question 3: Identify six Messier objects that you can see from your location tonight with a small telescope based on the information in SkyGazer.  List each one's Messier number, name, object type, and magnitude.  Which of these might be visible with binoculars?  Include your location and date.

Question 4: Based on the data you recorded in Parts 1-3 of Chapter 20 of the Astronomy Media Workbook, are most galaxies moving towards or away from the Earth?  Do galaxies that are further away move faster or slower?  What information in these tables tells you this?

Question 5: In Part 4, you graphed this data.  Which galaxy was furthest away?  Which was closest?  What was the rise of your graph and how long was the run?  What value did this give you for Hubble's constant?

Question 6: Using your value for Hubble's constant, approximately how old is the universe?  Is that similar to the accepted value of about 13.7 billion years?

Question 7: Select the radial velocity and distance of five or more individual galaxies and try to use these values to calculate a Hubble constant for each individual galaxy. Record the velocity, distance, and H for each one.

Question 8: Using your answers to Question 7, how do the individual values compare to the value you got from your graph? Do you think the individual values are more or less accurate than the value from your graph? Explain your answer.

Question 9: For the 15 galaxies, which did you identify as elliptical, spiral, barred spiral, and irregular?