SOLAR SYSTEM

Detailed explanation-1: -In a lunar eclipse, Earth’s shadow falls on the moon. And if the moon passes through the dark central shadow of Earth – the umbra – a partial or total lunar eclipse takes place. Then, if the moon only passes through the outer part of the shadow – the penumbra – a subtle penumbral eclipse occurs.

Detailed explanation-2: -A penumbral lunar eclipse occurs when the Moon passes only into the Earth’s penumbra. The penumbra causes a subtle dimming of the lunar surface, which is only visible to the naked eye when about 70% of the Moon’s diameter has immersed into Earth’s penumbra.

Detailed explanation-3: -A penumbral eclipse happens when the moon passes into the lighter outer region of the Earth’s shadow which is called the penumbra. This is an area in which the Earth appears to cover part of the sun’s disk but not all of it.

Detailed explanation-4: -A penumbral lunar eclipse occurs when the Moon passes through the outer part of the Earth’s shadow, causing it to appear slightly darker than usual.

Detailed explanation-5: -Penumbra: The portion of the Moon’s shadow in which only part of the Sun is covered. An observer standing in the penumbra sees only a partial solar eclipse.