Week 1 Lecture 3
Solutions at the bottom.

1)  In-video quiz at timepoint 02:41.

What coordinates are needed in order to describe a star's position?

Choose all apply. 
a) Meridian
b) Altitude 
c) Size
d) Azimuth

Solutions:

1) Correct answer is a) Meridian, b) Altitude and d) Azimuth.