606.96′
99942 Apophis/Radius
How big is the Apophis asteroid compared to Earth?
Apophis is a near-Earth asteroid with a relatively large size (it is about 1,100 feet – or 335 meters – wide). It gained notoriety in 2004 when early observations suggested it might strike Earth in 2029. Though it will come breathtakingly close to Earth in 2029, a strike was subsequently ruled out.
How big is the asteroid that’s coming in 2029?
about 1,100 feet
Estimated to be about 1,100 feet (340 meters) across, Apophis quickly gained notoriety as an asteroid that could pose a serious threat to Earth when astronomers predicted that it would come uncomfortably close in 2029.
How fast is Apophis traveling?
99942 Apophis
| Discovery | |
|---|---|
| Eccentricity | 0.1914 |
| Orbital period | 0.89 yr (323.7 d) |
| Average orbital speed | 30.73 km/s |
| Mean anomaly | 195.654° |
How many megatons will Apophis be?
NASA estimated that a strike by Apophis would release the equivalent of 880 megatons of energy.
How destructive would apophis be?
Apophis would cause widespread destruction up to several hundred of kilometers from its impact site. The energy released would be equal more than 1,000 megatons of TNT, or tens to hundreds of nuclear weapons. How big was the asteroid that killed the dinosaurs?
How much damage does Apophis?
What is the size of the Apophis asteroid?
99942 Apophis (/ ə ˈ p ɒ f ɪ s /) is a near-Earth asteroid with a diameter of 370 metres (1,210 feet) that caused a brief period of concern in December 2004 when initial observations indicated a probability up to 2.7% that it would hit Earth on April 13, 2029.
What is the size of the asteroid 99999942?
99942 Apophis ( /əˈpɒfɪs/, previously known by its provisional designation 2004 MN4) is a 370 meter diameter near-Earth asteroid that caused a brief period of concern in December 2004 because initial observations indicated a probability of up to 2.7% that it would hit Earth on April 13, 2029.
What will we learn from Apophis in 2029?
The most important observations of Apophis will come during its close Earth flyby in 2029. Scientists around the world will study the asteroid’s size, shape, composition and possibly even its interior. Apophis is a 1,120-foot-wide (340-meter-wide) asteroid.
How far away is Apophis from Earth?
At its farthest, Apophis can reach a distance of about 2 astronomical units (One astronomical unit, abbreviated as AU, is the distance from the Sun to Earth.) away from Earth. It’s expected to safely pass close to Earth — within 19,794 miles (31,860 kilometers) from our planet’s surface — on April 13, 2029.
