GEK1506 Heavenly Mathematics & Cultural Astronomy, Tutorial 2

  1. Describe the motion of the Sun across the sky in the course of the day as seen from
  2. How does the length of the day and the rising position of the Sun change in the course of the year at the following places?
  3. How do the celestial equator and the celestial poles lie with respect to the horizon in Singapore? How does it change if you move towards the north pole?
  4. Suppose you work as a real estate agent in Norway and you're looking at an apartment with a balcony. Which direction do you hope the balcony is facing? What if you work in Australia? Do Singaporeans prefer “morning Sun” or “afternoon Sun”?

Helmer Aslaksen
Department of Mathematics
National University of Singapore

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