The Lunar Eclipse

The Lunar Eclipse Thumbnail

The moon is a rocky and cold body of about 3,476Km in diameter. It shines by the reflection of the Sunlight on its surface because it has no light of its own. In every 29 and half days, the moon orbits the Earth. When it goes round our planet, the changing location of the moon in relation to the sun causes it to go through a series of phases.

The Lunar eclipse is a phenomenon that occurs when the Moon passes directly at the back the Earth in its shadow. This can happen only when the Sun, the Earth and the Moon are arranged in a line very closely with the earth in the middle. Therefore, a lunar eclipse occurs only on s full moon night. The duration and the nature of the eclipse depend upon the moon’s relative position to its orbital nodes.

The full lunar eclipse has the direct sunlight which totally lumped by the shadow of the Earth. Through the shadow of the Earth, only light seen is reflected. Like the sunset, this light also looks red for the same reason that the sunset has. Actually, they look red because of Rayleigh scattering of more blue light. Due to its reddish color, the full lunar eclipse is also called a blood moon.

A solar eclipse is can be viewed only from the definite quite small area of the world, but on the night side of the Earth, a lunar eclipse can be viewed from anywhere. Due to the smaller size of the shadow of the moon, a full solar eclipse has the longevity of only a few minutes at any given place, while, a lunar eclipse has a few hours duration span.. As compared to solar eclipses, the lunar eclipses are safe to view without and any special precautions and protection of the eye, because they are fainter than the full moon.

Kinds of Lunar eclipse

There are three kinds of lunar eclipse.

A total lunar eclipse:  This can happen when the whole moon passes through the shadow of the Earth’s Umbra. The total lunar eclipse can show deep orange color.

A Partial lunar eclipse: – Depending on the size of the eclipse, on the shadowed portion of the lunar eclipse, a charcoal gray, rust or dark red color may appear in the portion of the lunar eclipses shadowed portion.  This can happen because of the sharp difference between it and the bright part of the moon which remains outside the Umbra. Before and after a lunar eclipse, we can expect a similar optical effect during the incomplete phases.

A Penumbral lunar eclipse: – This can happen when the moon passes through the penumbra shadow of the Earth. In this eclipse, s lunar surface is not entirely shaded by the Earth’s Umbra. As an alternative, only the smallest dim near the lunar appendage that is closest to the umbra can be seen. In fact, when only half of the moon enters the penumbra, then the penumbral lunar eclipse can be seen.

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