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No, this isn't a magic ring: it is the eclipse of the
sun on 3rd October 2005 seen from Madrid, so that really we are seeing
the sun and moon at the same time. If we had
a gigantic torch we could illuminate the side of the moon which is
facing us. Drag the mouse over the image to see the effect.
The nature of the sun, a gigantic sphere of incandescent gases, will be referred to later on.
With regard to our satellite, the moon, a rocky sphere about four times smaller than the earth, we are going to concentrate on two important questions: |
