Explore: Apparent Motion

Apparent retrograde motion is the apparent motion of a planet in a direction opposite to that of other bodies within its system, as observed from a particular

Apparent motion may refer to: Aberration of light, an apparent shift in position of celestial objects due to the finite speed of light and the motion

In astronomy, diurnal motion (from Latin diurnus 'daily', from Latin diēs 'day') is the apparent motion of celestial objects (e.g. the Sun and stars)

The term illusory motion, or motion illusion or apparent motion, refers to any optical illusion in which a static image appears to be moving due to the

hours. The apparent sun is the true sun as seen by an observer on Earth. Apparent solar time or true solar time is based on the apparent motion of the actual

the ecliptic at two points known as the equinoxes. The Sun, in its apparent motion along the ecliptic, crosses the celestial equator at these points,

effect is an illusion related to human visual perception involving apparent motion. In a simplified explanation of one form of the illusion, two discs

psychophysics, Korte's third law of apparent motion is an observation relating the phenomenon of apparent motion to the distance and duration between

at high velocities. Light echoes can also produce apparent superluminal motion. Superluminal motion occurs as a special case of a more general phenomenon

velocity aberration) is a phenomenon where celestial objects exhibit an apparent motion about their true positions based on the velocity of the observer: It