How much of Earth's moons?

How much of Earth's moons? It is interesting

Figure 1 The asteroid 2005 YU55 could be used to the Moon of Earth.

As of today, our planet is only one satellite — the Moon. There is an assumption that once the Earth could be two large moons, until one of them has broken in a collision with another 4 billion years ago, making the moon appear unique topography.

Researcher Michael Granvik University of Helsinki, Finland, and colleagues presented a computer model of the Solar System asteroids flight, confirming that some of them may well have been, or might become satellites. Small asteroids can temporarily fly into the Earth's orbit around the planet to rotate up to 9 months, making at least three rotations, becoming VZO (temporarily seized objects).

Fig. 2. The orbit of 2006 RH120, became VZO in 2006.

Granvika simulator showed that certain asteroids can stay in orbit about 900 years. The scientist does not exclude the fact that at the present time around the Earth at a distance of 5-10 times the distance to the moon rotates like a satellite about a meter in diameter. There are also more small satellites with a diameter of 10 cm, but they are too small, darkened and removed at a decent distance that they could be observed, which would require a minimum of 3,200-megapixel telescope and the exact coordinates of the location.

In the future we plan to develop the study of these objects, which, in the opinion Granvika will be very useful for science and at the same time budget, the budget more than the study of the asteroid belt.

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