AST101H1 : AST Review Questions From Chapter 1-5

• School: UTSG
• Department: Astronomy & Astrophysics
• Course: AST101H1
• Professor: Clifford Orwin

Document Summary

Tidal friction slowed rotation period until it matched orbital period. When someone observes the moon in 1st quarter phase, the moon observes the. The moon goes through a cycle of phases because it always has the same side facing the earth. Depends on mass and distance from ground. Orbital period and distance of one of j:5907824438. Orbital period = 2 x average distance ; p = 8, d avg = 4 au. Centre of mass of a binary star system. Point at which both masses would balance if connected. Comparing the maximum altitude of the sun at two cities. From venus, earth looks in its full phase. 2/3 the way from the centre of galaxy. Shift to a shorter wavelength = blue shift = moving closer. Always emits more radiation per unit of sa than a cooler one. Remember, electrons do not orbit the nucleus like planets do the sun.