A potentially dangerous asteroid 1.5 km in size has been discovered. Such asteroids are called planet killers

(ORDO NEWS) — Using the Dark Energy Camera at the Cerro Tololo Observatory in Chile, astronomers have discovered three asteroids close to Earth, hidden in bright sunlight.

These asteroids are part of the population inside the orbits of the Earth and Venus. One of the asteroids is the largest potentially dangerous object discovered for the Earth in the last eight years. Its size is 1.5 km.

None of the discovered asteroids crosses the earth’s orbit today. But things can change with time

An international team of astronomers using the Dark Energy Camera (DECam) mounted on a 4-meter telescope at the Cerro Tololo Inter-American Observatory in Chile has discovered three new near-Earth asteroids lurking inside the orbits of Earth and Venus.

This region is very difficult to observe because asteroids are not visible in bright sunlight.

Astronomers took advantage of the short, favorable observing conditions during twilight. It was possible to detect three potentially dangerous asteroids.

One of them has a size of 1.5 km. Named 2022 AP7, its orbit may eventually be in the path of the Earth. Other asteroids, named 2021 LJ4 and 2021 PH27, have orbits that are safe for now.

Of particular interest to astronomers and astrophysicists is 2021 PH27, which is the closest known asteroid to the Sun.

It has the largest general relativity effects of any object in our solar system, and as it orbits, its surface heats up enough to melt lead.

What the sun prevents to see

A potentially dangerous asteroid 1 5 km in size has been discovered Such asteroids are called planet killers 2
2021 PH27 is the Solar System’s closest asteroid to the Sun

Finding asteroids in the inner solar system is a challenging observational task. Astronomers have only two short 10-minute windows each night to explore this area and have to contend with a bright background sky from sunlight.

In addition, such observations are carried out very close to the horizon, which means that astronomers have to look through the dense layer of the Earth’s atmosphere, which can blur and distort the picture.

Scott S. Sheppard, lead author of the article says : “So far, we have detected two large asteroids with a diameter of about 1 km.

We call asteroids of this size “planet killers”.

We are likely to find several more asteroids of similar size, and these large undiscovered asteroids likely have orbits that keep them inside the orbits of Earth and Venus most of the time.”


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