ASTRONOMY 305

How to Study

• Review your homework 7 and 8.

Example Problems

1. Compute the angle between 2 stars using high accuracy.
2. You are given the declination of a star. What will be its Azimuth when it rises? ...when it sets?
3. Atmospheric Refraction: What is the apparent altitude of a star (a') if you compute its true altitude (a) to be 10 degrees? Note: The true altitude (a) of a star is the altitude that you would observe if there were no atmosphere.
4. Atmospheric Extinction: How is z related to a? What is the magnitude of a star when a=10 degrees if it's magnitude at the zenith is 10?
5. How far is Mars from the Sun at perihelion and aphelion? What is the angular size of the sun as seen from Mars?
6. Be able two analize light curves like those shown in problems 2, 3 and 4 of Homework 8.