Describe “Blood moon.” When does it take place? (125 Words) [UPPSC 2023]
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What is ‘Blood Moon’?
‘Blood Moon‘ refers to the reddish appearance of the Moon during a total lunar eclipse. This phenomenon occurs when the Earth comes between the Sun and the Moon, causing the Earth’s shadow to fall on the Moon. The Moon appears red due to the scattering of sunlight through Earth’s atmosphere, which filters out shorter blue wavelengths and allows longer red wavelengths to reach the Moon.
When Does it Happen?
A ‘Blood Moon’ happens during a total lunar eclipse, which typically occurs about every 1.5 years. The next notable instance was on May 15-16, 2022, when a total lunar eclipse provided a striking example of the Blood Moon effect. These eclipses occur when the Moon is completely covered by Earth’s umbra, the central, darkest part of its shadow.