What is a lunar eclipse?
It is called lunar eclipse or lunar eclipse to the event or natural phenomenon in which the Earth interposes between the Moon and the Sun and a shadow is generated that obscures the light of the Moon.
For this to occur, it is necessary that the Sun, Earth and Moon align, or, at least, be as close as possible to form a straight line, then the solar rays are blocked and cannot reach the Moon. .
Lunar eclipses only occur when the Moon is in the full moon phase and can be observed from anywhere in the world, at night, for several hours.
These eclipses can be seen very well through a special lens or telescope.
Lunar eclipses are also characterized by the reddish or orange color that the Moon takes because it absorbs the brightness of the sunrises and sunsets that occur around the Earth.
This has to do with the cone of shadow and penumbra that forms when the three celestial bodies are aligned during the lunar eclipse process.
Types of lunar eclipses
There are different types of lunar eclipses depending on the shadow that the Earth forms, so it can be threshold or penumbral. These eclipses only occur when the Moon is in its full phase and are classified as follows:
- Penumbral: the Moon passes over the penumbral shadow of the Earth and darkens slightly, so much so that in some cases it is difficult to appreciate this fact.
- Partial: only part of the Moon is located in the threshold zone.
- Total: the Moon is located in its entirety in the threshold zone.
These eclipses can be observed from time to time but not monthly because the Moon's orbit is inclined with respect to the Earth's orbit, therefore their points of orbit do not coincide.
This is not possible since the three celestial bodies do not coincide or align with each other constantly, so much so, that sometimes the Moon can be located behind the Earth and receive light from the Sun.
Difference between lunar and solar eclipse
Eclipses, whether lunar or solar, occur when the Earth or Moon gets in the way that sunlight travels.
When we speak of a lunar eclipse it is because the Moon takes a reddish color thanks to the fact that the Earth intervenes in its path and interferes with the solar rays. In this case, the alignment of the celestial bodies is as follows: Moon, Earth and Sun.
Solar eclipses, on the other hand, are characterized by the fact that the Sun turns a darker color since the Moon intervenes in its path and the day darkens for a few minutes. In this case the Sun, Moon and Earth align.