Which term describes the phenomenon known as a "blood moon"?

The term that describes the phenomenon known as a "blood moon" is a lunar eclipse. During a lunar eclipse, the Earth positions itself directly between the Sun and the Moon. This alignment causes the Earth to cast its shadow on the Moon, and when the light from the Sun passes through the Earth’s atmosphere, it bends and filters out shorter wavelengths of light, resulting in the longer wavelengths, such as red. This scattering gives the Moon a reddish appearance, hence the term "blood moon."

Other terms listed do not relate to this specific celestial event. A solar eclipse, for instance, occurs when the Moon passes between the Earth and the Sun, blocking the Sun's light. A supermoon refers to a full moon that appears larger and brighter due to its closer proximity to Earth in its elliptical orbit. Stellarium is a planetarium software that simulates the night sky, but it does not specifically describe an astronomical phenomenon.