Scientists, without official confirmation, estimate that it measures between 10 and 15 meters, just a tiny fraction when compared to the Moon, which exceeds 3,400 kilometers.
Experts explain that the cosmic companion has been in the vicinity of the earth since 100 BC and that it will continue to circle our planet for approximately 1,500 more years.
"They do not produce their own light and neither do they particularly reflect sunlight. That makes them very weak despite being very close," says one of the researchers, according to the Daily Mail portal.
Its orbit around the sun takes almost exactly the same time as the earth, 365.42 days (1.0005 years on earth). Although it circles the earth on its orbital journey, the orbit is so elongated that it reaches halfway to Mars and Venus.
