Asteroid to Pass Extremely Close By Earth on Monday | Near-Earth Asteroids & Potentially Dangerous Asteroids | Asteroid Photos & Comets | Space.com: "For several hours prior to its closest approach, 2011 MD will be visible in moderately-large amateur telescopes. But despite its close approach, actually seeing this asteroid will not be an easy task.
'These objects are so small (10 meters) that normally a sizeable telescope is required,' Asteroid Watch scientists warned."
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