1. Astronomy 101 The Solar System Tuesday, Thursday 2:30-3:45 pm Hasbrouck 20 Tom Burbine tomburbine@astro.umass.edu

2. Course Course Website: –http://blogs.umass.edu/astron101-tburbine/http://blogs.umass.edu/astron101-tburbine/ Textbook: –Pathways to Astronomy (2nd Edition) by Stephen Schneider and Thomas Arny. You also will need a calculator.

3. Office Hours Mine Tuesday, Thursday - 1:15-2:15pm Lederle Graduate Research Tower C 632 Neil Tuesday, Thursday - 11 am-noon Lederle Graduate Research Tower B 619-O

4. Homework We will use Spark https://spark.oit.umass.edu/webct/logonDisplay.d owebcthttps://spark.oit.umass.edu/webct/logonDisplay.d owebct Homework will be due approximately twice a week

5. Astronomy Information Astronomy Help Desk Mon-Thurs 7-9pm Hasbrouck 205 The Observatory should be open on clear Thursdays Students should check the observatory website at: http://www.astro.umass.edu/~orchardhill for updated information http://www.astro.umass.edu/~orchardhill There's a map to the observatory on the website.

6. Final Monday - 12/14 4:00 pm Hasbrouck 20

7. HW #9 Due October 27

8. HW #10 Due Oct. 29

9. Homework Review https://spark.oit.umass.edu/webct/logonDisplay.d owebcthttps://spark.oit.umass.edu/webct/logonDisplay.d owebct

10. Exam #2 This Thursday Bring a calculator and a pencil No cell phones, Blackberries, iPhones Covers material from September 22 through October 8 (Units 14-31) Practice test on website Review session: –10/21 (Wed.) at 6 pm in Hasbrouck 134

11. Formulas you need to know F = GMm/r 2 F = ma a = GM/r 2 Escape velocity = sqrt(2GM/r) T (K) = T ( o C) + 273.15 c = f* E = h*f KE = 1/2mv 2 E = mc 2

12. More Formulas Power emitted per unit surface area = σT 4 λ max (nm) = (2,900,000 nm*K)/T Apparent brightness = Luminosity 4  x (distance) 2

13. Any Questions?