Astrological phenomena refer to events and alignments in the sky that are believed to influence human behavior and personality traits. These include the positions of celestial bodies like the Sun, Moon, and planets at the time of a person's birth, which form the basis of their astrological chart. Common astrological phenomena include retrogrades, where a planet appears to move backward in the sky, and eclipses, which occur when one celestial body moves into the shadow of another. Astrologers interpret these events to provide insights into potential life events and personal characteristics.