Birthday Invitation Sample Wording 3 Years Old

Iniciación ASTRONOMY (31)

MECHANISM OF AN ECLIPSE OF MOON

Lunar eclipses are caused by interposition of the Earth between the Sun and the Moon, ie, when the Earth's shadow falls on the Moon, and occurs necessarily on a full moon. The Sun and Moon in opposition, ie, diametrically opposite in the sky with respect to the Earth as a lunar eclipse requires alignment the Sun, Earth, Moon.
If a spherical opaque body is placed before a light source also spherical, the boundary of the shadow will be the conical surface tangent to the two bodies and appear shaded areas and shadow areas. The shadow ring is substantially the same width as the Moon and the diameter of the shadow is nearly triple.
In the case of a lunar eclipse, the Sun is the light source and the Earth is opaque body. For the Moon enters the shadow cone is necessary that the Moon is in opposition and at Full Moon or Full Moon. If the whole moon enters the umbra will be a total lunar eclipse, if not enter a part, will be a partial lunar eclipse.
If the lunar orbit plane coincide with the ecliptic, in each competition or full moon, there would be a lunar eclipse. But remember that the plane of the lunar orbit is inclined 5 º 8'respecto of the Ecliptic and therefore the umbra will sometimes below and other above the moon, then there will be no eclipse of the moon. When there is an opposition and Moon encientre the node (when the moon's latitude is zero) or close to it, then there will be a lunar eclipse.
The lunar eclipse you can see all the observers who see this item on the skyline. Copper dyes are observed in a total lunar eclipse is due to the refraction of sunlight in Earth's atmosphere, casting shades on the Moon comparable to those of a setting sun lighting the moon during an eclipse depends on our atmosphere: dust, volcanic ash suspended in eclipse darkens the air.
The edge of the Moon is dark, with no significant first so then it is more noticeable. After an hour the Moon has entered fully into the penumbra of the Earth and has lost luster. See a black notch biting the edge of this, is the entry into Earth's shadow. Notch increased progressively and in an hour and has engulfed the entire lunar disk.
At first, the shadow is blue-gray and as surrounding the lunar disk becomes red. A total eclipse from dominating the red, but the tone varies in the course of the phenomenon.