Lunar Phase Simulator & Quizzer
Simulation
Quiz
Animation Mode Experimentation Mode
Animation Speed :
Time Counter
days
Link SunEarth/Moon Motion
Constrain to 45° Positions
Options
Show: Observer Tickmarks
Local Time :
Show Tangents: Rising MeridianSetting
Choose a question to test your understanding of how the Earth-Moon-Sun geometry determines the phases of the Moon.
ToolTip