What is the defnition of eclipse?

Answer 1

An eclipse is an astronomical event that occurs when one celestial body moves into the shadow of another body, temporarily obscuring it. There are two main types: a solar eclipse, where the Moon passes between the Earth and the Sun, blocking the Sun's light, and a lunar eclipse, where the Earth passes between the Sun and the Moon, causing the Earth’s shadow to fall on the Moon. Eclipses can be total, partial, or penumbral, depending on the alignment and coverage.