• orbits Earth in 27.32 days (sidereal month)
• 5 deg. tilt of orbital plane
• distance = 30 earth diameters ( ~8000 miles or 12,800 km)     
• apparent. size  ½°
Lunar albedo  (fraction of sunlight reflected)
          7 % - like blackboard
Lunar phases
• Synodic (lunar phase) period = 29.531 days
• always same face to Earth (synchronous rotation)
Moonrise and set
Eclipses
• correlation w/ phase of moon
• don’t see every full (lunar ecl.) or new moon (sol. ecl.)
The Moon