# How big was the asteroid that almost hit us?

## How big was the asteroid that almost hit us?

The asteroid 4660 Nereus, discovered in 1982, is classified as a “potential hazardous asteroid” by NASA due to its size and how close it approaches Earth. At approximately 1,083 feet, it is 20 feet taller than the Eiffel Tower.

## How big is the asteroid tonight?

It is estimated to be 3,451 feet (1.052km) in diameter, much larger than the tallest building on earth, the Burj Khalifa in Dubai, which measures 2,722 feet. Asteroid 7482 (1994 PC1) will safely pass within 1.2 million miles of Earth — around five times farther away from the planet than the moon.

How big would an asteroid have to be to move the Earth?

Ultimately, scientists estimate that an asteroid would have to be about 96 km (60 miles) wide to completely and utterly wipe out life on our planet.

606.96′

### Can the Earth fall out of orbit?

It is not possible for the Earth to fall out of its orbit unless it escapes the Sun’s gravitational attraction, which can only happen if the distance between the Sun and the Earth increases drastically.

What is asteroid 2012 DA14?

A: Asteroid 2012 DA14 is a small near-Earth object – approximately 150 feet (45 meters) in diameter. On Feb. 15, 2013, the asteroid will pass by our planet at a remarkably close distance, but the asteroid’s path is understood well enough that there is no chance of a collision with the Earth.

#### What is the average size of an asteroid?

Asteroids range in size from Vesta—the largest at about 329 miles (530 kilometers) in diameter – to bodies that are less than 33 feet (10 meters) across. The total mass of all the asteroids combined is less than that of Earth’s Moon.

#### What is the value of DA14?

With a diameter of 50 meters and a mass of 190,000 metric tons, DA14 is nothing more than an average-sized asteroid — and yet, if harvested, it would yield somewhere in the region of \$65 billion of water, and \$130 billion in minerals. The global metals and mining industry currently has a value of around \$3 trillion — or 15 DA14-sized asteroids.

What is DA14’s orbital period around the Sun?

Since 2012 DA14’s orbital period around the Sun has been about 368 days, which is very similar to the Earth’s, the asteroid made a series of annual close approaches, this year’s being the closest.

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