Stars, planets, and the Sun all appear to move across our sky. What are the causes of this apparent motion, on daily and yearly timescales? Describe the nightly motion of a star at our latitude (37° N), specifying whether it is circumpolar (i.e., close to Polaris) or not. On longer timescales (i.e., months), how do our solar system planets move? Do they always move in the same direction? How about our Sun- what is its daily apparent motion, and how does that change throughout the year?
