Buscar este blog

jueves, 5 de junio de 2014

SOLAR ESCLIPSES


Solar eclipses are a natural phenomenon that only occurs when there is new moon. The moon hides the sun passing in front of him. All you can see is a black circle with a ring of light around and the sky is completely dark. This seems impossible, since the moon is much smaller than the sun, but it happens because although the moon is 400 times smaller than the sun, the sun is located 400 times farther than the moon. On Earth we are lucky, because this does not happen anywhere else in the Solar System. Even so a solar eclipse is only seen from a small part of the Earth, right where the shadow of the moon falls. So people make long trips to see eclipses.

There are three types of solar esclipse:

  1. Total Eclipse: The moon covers the entire solar disk, revealing a ring of light.
  2. Partial Eclipse: The moon only covers a portion of the solar disk, as if to eat it, but end up devouring. The sky is not completely dark.
  3. Annular Eclipse: occurs when the moon is at the time in which is placed as far away from Earth that can get.  The moon is in front of the sun and all this lip looks, and that being the moon is far smaller.

Every year there are at least two solar eclipses, most of them partial. There are also solar eclipses and lunar eclipses.

November 13, 2012 the European Space Agency (ESA) announced that the next day there would be a solar eclipse at 22:11:48, on that day, and would last four minutes and two seconds. It would only be visible on Earth to those found in northern Australia, particularly in Queensland coast. The European Space Agency reports that the Proba-2 satellite would be prowling the shadow of the moon several times, in addition to this, seeing that would be two partial eclipses. At the time of total eclipse Proba-2 would see the full solar disk and make a snapshot of that.

In this video it looks as it was the eclipse from Australia.


 And in this image can be seen as seen from space.


The purpose of this would be to compare the solar corona as seen from Earth and from space. The satellite has two instruments installed one is called SWAP which monitors the UV light and the LYRA instrument that measures the energy that the sun emits
In this video it looks as it was the eclipse from Australia.

Again on November 15, 2012 The European Space Agency published an article that says the satellite, Proba-2, could live three partial eclipses of the sun during the night and in Australia were able to observe the total solar eclipse. On that night the moon looked big enough to block the sun. The satellite was passing through the shadow of the moon three times during the solar eclipse that night, although the eclipse from their situation was not complete at any time.

The European Space Agency recommends that eclipses to see qualified people use special glasses to view or authorized telescopes materials.

No hay comentarios:

Publicar un comentario