Eclipse of the moon, also known as lunar eclipse, occurs when the Earth comes between the sun and the moon, causing the shadow of the Earth to fall on the moon. This celestial event has several synonyms such as blood moon, red moon, copper moon, rusty moon, and hunter's moon. The term blood moon is used when the moon is fully eclipsed and takes on a reddish hue due to the scattering of light by the Earth's atmosphere. The term red, copper, and rusty moon refers to the moon's reddish-brown color during a lunar eclipse. The hunter's moon is another term used to describe a full moon that occurs in October when hunters traditionally hunted by moonlight.