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How Rare Is A Selenelion Grouped Among Four Lunar Eclipses That Has A Total Solar Eclipse In The

Due to the orbital plane of the Moon, most lunar and solar eclipses are followed (or preceded) by an eclipse of the opposite type around 14.5 days later/earlier. The upcoming eclipses in August is no exception. There will be a partial lunar eclipse on the night of 7/8 August which is before the great American solar eclipse on August 21, 2017.The Moon orbits the Earth approximately once every 29 days. However, we don’t get an eclipse every month because the Moon’s orbit is inclined to the Earth orbit of the Sun by around 5 degrees. This makes the Moon pass above or below the Sun as viewed from the Earth during each new Moon most of the time. The Moon’s orbit eventually does cross the Earth-Sun orbit plane so that it passes right in front of the Sun, we then we get an eclipse. This also usually means the Moon is still in this correct plane 14.5 days later to move in to the Earth’s shadow (a lunar eclipse) or vice-versa.

Due to the orbital plane of the Moon, most lunar and solar eclipses are actually followed by an eclipse of the opposite type around 14.5 days later. A good example are the upcoming eclipses in August. There will be a partial lunar eclipse on the night of 7/8 August which is before the great American solar eclipse on August 21, 2017.The Moon orbits the Sun approximately once every 29 days. However, we don’t get an eclipse every month because the Moon’s orbit is inclined to the Earth orbit of the Sun by around 5 degrees. This makes the Moon pass above or below the Sun as viewed from the Earth during each new Moon most of the time. The Moon’s orbit eventually does cross the Earth-Sun orbit plane so that it passes right in front of the Sun, we then we get an eclipse. This also usually means the Moon is still in this correct plane 14.5 days later to move in to the Earth’s shadow (a lunar eclipse) or vice-versa.

Selenelion eclipse occurs when both the sun and the eclipsed moon can be seen at the same time.Lunar Eclipse: the sun, Earth and moon are in a geometrically straight line in space, with the Earth in the middle. This means if the sun is above the horizon, the moon must be below the horizon and completely out of sight.Selenelion Eclipse is only possible due to atmospheric refraction.Atmospheric refraction causes astronomical objects to appear higher in the sky than they are in reality. So when you see the sun sitting on the horizon, it is not there really. It's actually below the edge of the horizon, but our atmosphere acts like a lens and bends the sun's image just above the horizon, allowing us to see the sun.In the same way during lunar eclipse, at some places the sun is visible due to atmospheric refraction thereby making the selenelion Eclipse possible.

Why are you less likely to see a luner eclipse than solar?

You are actually less likely to see a solar eclipse than a lunar eclipse. A solar eclipse happens when the moon casts a shadow on the earth. Since the moon is so little and most of the time is not perfectly lined up with the sun, we don't see a solar eclipse often. This happens about every 18 months. A lunar eclipse happens when the earth casts a shadow on the moon, which happens more often since the earth is larger than the moon. A partial lunar eclipse happens twice a year.

Why are lunar eclipses more common than solar eclipses?

Actually Lunar eclipses are not any more common than solar eclipses, but half the world can see a lunar eclipse whereas the total solar eclipse is only visible in a 100 mile swath that may span a few thousand miles. Most solar eclipse are either partial or annular which are not as dramatic as a total solar eclipse. The annular solar eclipse is when the Moon doesn't cover the full Sun leaving an outer ring. In any place on Earth you have to wait roughly 300 years from one total solar eclipse for the next total solar eclipse.
The Moon orbits the Earth at an inclination of 5.1° with respect to the ecliptic. If the Moon's orbit was not inclined to the ecliptic both solar and lunar eclipses would happen every month.

Lunar and solar eclipses?

At least twice per year, although total eclipses are more rare.

Basically the orbit of the Moon is titled about 5 degrees compared to the orbit of the Earth. The two points where the planes of two orbits intersect are called nodes. Anytime one of these nodes coincides with a full moon, then the Moon will be in the Earths shadow and you have a lunar eclipse. When it coincides with a new moon, then the Moon casts its shadow on the Earth and you get a solar eclipse.

Whether or not the eclipse is partial or total depends on just how precisely the nodes and the phase of the Moon coincide. Also, because the Earth's shadow is four times bigger than the Moon's, lunar eclipses happen more often and can be seen by half the planet. Solar eclipses are more rare and are only visible in a limited area since the Moon's shadow cannot cover the whole Earth.

Have a look at the Wikipedia article below. It has diagrams and stuff.

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