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Astronomy 201
Spring 2009
Prof. Christopher M. Johns-Krull

All handouts given in class will be posted here. All files are Microsoft Word documents unless otherwise stated.

Tuesday, January 6, 2009:

Tuesday, January 13, 2009:

Tuesday, January 17, 2009:

Here is the second homework assignment: homework_2.doc Note: there were some arrows and positions points drawn in by hand in the actual assignment handed out in class which are needed to get a couple of the questions answered correctly.

Thursday, February 12, 2009:

Here is the third homework assignment: homework_3.doc Note: Two things. First, I was confused in class on Tuesday the 17th. the homework assignment says it is due on Tuesday the 23rd, but the 23rd is Monday. The correct due date in Tuesday the 24th. Second, problem number 10 asks you to answer question 40 from Chapter 15 in your textbook. There is some missing type in the textbook for this question. To clarify, capital M sub V (M_V) is the absolute magnitude and little m sub V (m_V) is the apparent magnitude. There are also missing values from the actual table. The values should be Aldebaran: M_V = -0.51, m_V = 0.99; Alpha Cen A: M_V = 4.35, m_V = 0.00; Antares: M_V = -5.27, m_V = 1.07; Canopus: M_V = -5.53, m_V = -0.62; Fomalhaut: M_V = 1.80, m_V = 1.23; Regulus: M_V = -0.48, m_V = 1.40; Sirius: M_V = 1.45, m_V = -1.44; Spica: M_V = -3.48, m_V = 1.05.

Thursday, February 26, 2009:

Thursday, March 12, 2009:

Thursday, March 26, 2009:

Thursday, April 9, 2009:

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