Key Facts:
Size and Composition: Apophis is approximately 340 meters (1,100 feet) in diameter. It is classified as a S-type asteroid, meaning it is composed mainly of silicate materials and metal.
Orbit and Potential Impact: Apophis has an orbit that brings it close to Earth periodically. Early observations suggested a small chance of impact in 2029, but subsequent observations and orbital adjustments have significantly reduced this risk. The asteroid will pass within 31,000 kilometers (19,000 miles) of Earth on April 13, 2029, which is closer than some geostationary satellites.
Observation and Monitoring: Since its discovery, Apophis has been closely monitored by astronomers and space agencies. Improved tracking data has clarified its orbit and reduced the probability of a future impact. The asteroid will be closely observed during its 2029 flyby to refine its trajectory for future risk assessments.
Scientific Interest: Apophis provides an opportunity for scientific study, as its close approach allows researchers to study its physical properties, shape, and rotation. This data helps in understanding asteroid compositions and preparing for potential future asteroid threats.
The current consensus is that Apophis poses no significant threat to Earth in the foreseeable future, but its close approaches continue to be of interest for planetary defense research and asteroid characterization.
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