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Dimorphos (formal designation (65803) Didymos I; provisional designation S/2003 (65803) 1) is a natural satellite or moon of the near-Earth asteroid 65803 Didymos, with which it forms a binary system.
65803 Didymos (provisional designation 1996 GT) is a sub-kilometer asteroid and binary system that is classified as a potentially hazardous asteroid and near-Earth object of the Apollo group. [ a ] The asteroid was discovered in 1996 by the Spacewatch survey at Kitt Peak , and its small 160-meter minor-planet moon , named Dimorphos , was ...
Nearly two years ago, the Double Asteroid Redirection Test spacecraft, or DART, collided with Dimorphos, a small asteroid that is the moon of a bigger space rock, Didymos, at about 14,000 miles ...
The primary asteroid (Didymos A) is about 780 metres (2,560 ft) in diameter; the asteroid moon Dimorphos (Didymos B) is about 160 metres (520 ft) in diameter in an orbit about 1 kilometre (0.62 mi) from the primary. [15] The mass of the Didymos system is estimated at 528 billion kg, with Dimorphos comprising 4.8 billion kg of that total. [21]
Didymos and Dimorphos do not pose an actual threat to Earth. DART struck Dimorphos on Sept. 26, 2022, at about 14,000 miles per hour (22,530 kph) at a distance of roughly 6.8 million miles (11 ...
Neither Dimorphos nor Didymos poses a danger to Earth. Still, the double-asteroid system was a perfect target on which to test deflection technology because Dimorphos’ size is comparable to ...
Binary asteroid 243 Ida with its small minor-planet moon, Dactyl, as seen by Galileo Binary near-Earth asteroid 65803 Didymos and its moon Dimorphos imaged by the Double Asteroid Redirection Test spacecraft. A binary asteroid is a system of two asteroids orbiting their common barycenter.
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