potentially hazardous asteroid


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potentially hazardous asteroid

[pə‚ten·chə·lē ‚haz·ərd·əs ′as·tə‚rȯid]
(astronomy)
An asteroid whose orbit approaches within 0.05 astronomical unit of the earth's orbit, and which is brighter than an absolute visual magnitude of 22.0, corresponding to a diameter of at least 110-240 meters (360-800 feet).
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Potentially Hazardous Asteroids approach Earth closer than about 7 million km - about 1300 are known.
Summary: Moroccan students at Al Akhawayn University (AUI) recently received NASA research awards for measuring Potentially Hazardous Asteroids for NASA under the Killer Asteroid Project.
Eight of the objects discovered in the past year have been classified as potentially hazardous asteroids (PHAs), based on their size and how closely their orbits approach Earth.
NASA tracks around 12,992 near-Earth objects that are  orbiting within our solar system close to our own orbit and and estimated around 1,607 of them are classified as Potentially Hazardous Asteroids, the (http://www.
These so-called near-Earth objects (NEOs) are potentially hazardous asteroids (PHAs).
This data will assist researchers study the formation of galaxies, track potentially hazardous asteroids, observe exploding stars and better understand dark matter and dark energy, which together make up 95 % of the universe but whose natures remain unknown.
Close approaches of Potentially Hazardous Asteroids during 2013 Designation Date Distance 2001 AV43 2013 Nov 18.
Discovered in 1989 and named for a god of ancient Gaul, the tumbling, bowlingpinshaped object is the largest of the 672 known potentially hazardous asteroids.
This work includes locating potentially hazardous asteroids and identifying those viable for redirection to a stable lunar orbit for future exploration by astronauts.
The solar system contains 4,700 potentially hazardous asteroids that are 330 feet in diameter or larger, according to observations from NASA's Wide-field Infrared Survey Explorer.
Close approaches of Potentially Hazardous Asteroids during 2012 Designation Date Distance 1998 HE3 2012 May 10, 20h 0.

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