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Space
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Fri Jun 17, 2016 05:35 PM
Last update on: Fri Jun 17, 2016 05:43 PM

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Space

Tiny asteroid now Earth’s constant companion

Star Online Report
Fri Jun 17, 2016 05:35 PM Last update on: Fri Jun 17, 2016 05:43 PM
Asteroid 2016 HO3 has an orbit around the sun that keeps it as a constant companion of Earth. Photo Courtesy: NASA

The Earth has got a small companion. NASA scientists have discovered a small asteroid in an orbit around the Sun that keeps it as a constant companion of Earth and it will remain so for centuries to come.

As it orbits the sun, this new asteroid, designated "2016 HO3", appears to circle around Earth as well. It is too distant to be considered a true satellite of our planet, but it is the best and most stable example to date of a near-Earth companion, or "quasi-satellite."

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"Since 2016 HO3 loops around our planet, but never ventures very far away as we both go around the sun, we refer to it as a quasi-satellite of Earth," said Paul Chodas, manager of NASA's Center for Near-Earth Object (NEO) Studies at the Jet Propulsion Laboratory in Pasadena, California.

One other asteroid "2003 YN107'' followed a similar orbital pattern for a while over 10 years ago, but it has since departed our vicinity.

"This new asteroid is much more locked onto us. Our calculations indicate 2016 HO3 has been a stable quasi-satellite of Earth for almost a century, and it will continue to follow this pattern as Earth's companion for centuries to come," he added.

The size of this object has not yet been firmly established but it is likely larger than 120 ft and smaller than 300 ft.

 

Related topic:
NasaNasa setelliteasteroidlargest asteroid impact areacosmological constantspace scienceSpace Station
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