En una publicación de blog anterior, hablamos sobre la formación de la Luna y discutimos cómo originalmente estaba 15 veces más cerca y se ha alejado lentamente a su posición actual. Teniendo en cuenta que la Luna todavía se está alejando de nosotros hasta el día de hoy, podemos suponer que los eclipses solares totales no ocurrirán en la Tierra para siempre.
The longest solar eclipses occur when the Moon is close to the Earth and the Earth is far from the Sun. During these solar eclipses the Moon appears 4.6 % larger than the Sun in our sky. So when the Moon has moved far enough away to appear over 4.6% smaller there will be no more total solar eclipses. For this to happen the Moon has to be 4.6% farther away, which means it would need to go about 10,500 miles further from the Earth. With the Moon’s current rate of recession it is seen that the Moon will be too far to produce a total solar eclipse in about 500 million years. The Earth will then only being able to produce annular eclipses and partial eclipses. As you can see in the picture to the right, our celestial neighbor, Mars also is unable to have total solar eclipses.
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