ASTR100, Fall 2017

ASTR100: Solutions to Selected Discussion Questions

ASTR100 Introduction to Astronomy

Hello, everyone...

I'm ChongChong He, the TA of ASTR100 (Sections 0104 and 0105). I am here to guide you toward a better understanding of astronomy. This website is used to privode solutions to homework and discussion problems, presentation slides, useful information, and materials that I use in the discussion. The syllabus for our discussion is available here.

Discussion Meet

  • Time: Fri 10:00-10:50am (0104) 11:00-11:50am (0105)
  • Location: ATL 2400

Office Hours

  • Time: Mon 3:30-4:30 pm, Wed 11:00 am-12:00 pm
  • Location: PSC 1238

Section Policy

  • Please show up for your discussion. Remember to bring your Lecture-Tutorials as our discussion will be largely based on it.
  • Make-up policy You are given one chance in the whole semester to miss a discussion and have a make-up section during my office hours. After that, you won’t get grades for your future absence of a discussion section without a valid excuse (see the course syllabus for details.)


Solutions to selected discussion questions, discussion slides, and useful information will appear here.

Week 1 Week 2 Week 3 Week 4
  • Problems covered:
    • Electromagnetic (EM) Spectrum of Light: all
    • Telescopes and Earth's Atmosphere: all
    • Greenhouse Effect: (1) (2) (3)