Secrets of a mysterious "heavenly body," orbiting around the sun

Dear Steemians,

Today I present you: Secrets of a mysterious "heavenly body," orbiting around the sun

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On December 21, 2017, a mysterious cosmic object was orbiting around the Sun (a complete rotation every 4.74 years) and was named 2017 YE5.

Pic Source

Its shape is characterized by the existence of "two lobes", two protuberances located at the extremities.

At that time it was considered to be an asteroid similar to the 67P comet.

Shortly before it was discovered that it is not a single object, there are ... two asteroids that are held together by gravity.

The orbits that rotate around the Sun are elliptical and approach the Earth in June at a distance of 6 million kilometers.

Pic Source

So they were examined by astronomers at the Arecibo Observatory in Puerto Ricoau and it was found that there are not one, but two asteroids close to each other!

Every 20-24 hours, the two bodies perform one complete rotation, one around the other, an unusual "torque."

Video Source

In such binary systems, there is usually a large asteroid and a smaller one.

The double asteroid system called 2017 YE5 is a special one, as each of the two celestial bodies has a similar length of about 900 meters.

Each of the two celestial bodies reflects the waves emitted from Earth differently, which means that they could have different origins, compositions or densities.

They were considered not to be together since training and were brought into the current situation by the gravitational forces.

Source 1

Source 2

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