What is the basic information of eros called "Fat Banana"?

The sky shows you the basic information of eros, which is called "Fat Banana". 433Eros is an Amor asteroid. Eros is a mini-asteroid, 33km long and 13km thick. Next, follow Bian Xiao and continue to have a look!

Eros is an asteroid of Amor type. 1August, 898 13 was discovered by German astronomer Witt. Known as the "fat banana".

Basic information 433Eros is an Amor asteroid. Eros is a mini-asteroid, 33km long and 13km thick. The half-length diameter of the orbit of eros is 1.46 astronomical unit, that of period of revolution is 1.75 years, the rotation period is 5 hours 16 minutes, and the eccentricity is 0.22. The nearest time to the earth is 0. 13 astronomical unit, and its size is 33× 13× 13 km, so it is called "fat banana". When 1900 and193/year were "washed", international joint observation was carried out to determine the distance between the sun and the earth and obtain the astronomical unit length. On February/KOOC-0/4, 2000, at/KOOC-0/0: 33 EST, the NEAR spacecraft successfully entered the orbit of the asteroid Eros, becoming the first artificial satellite of the asteroid. It will pass at1October 3 1 20 12, about 0. 179AU away from the earth.

The name 1898 August 13 was discovered by German astronomer Werther and named after eros, the god of love in Greek mythology.

One of the asteroids is very special, so we should pay special attention to it. Hundreds of asteroids known before 1898 all run between the orbits of Mars and Jupiter. But that summer, Witt in Berlin discovered that a planet actually entered the orbit of Mars at perihelion-actually within 22 million kilometers of Earth's orbit. He named it eros. The planet's orbit is eccentric, and it broke away from the orbit of Mars at apohelion. In addition, the two orbits of this planet and Mars are actually like two links of a chain, so if the orbits are made of metal wires, they will be connected.

Due to the inclination of its orbit, this planet often falls out of the range of the zodiac. 1900 when approaching the earth, go north, so far as not to fall on the horizon in the middle of north latitude, but it is also north of zenith when passing through meridian circle. Its movement is so special, which is undoubtedly one of the reasons why we can't find it early. When it approached the earth at 1900 ~ 190 1, we took a closer look at this eros, but found that its luminosity changed every hour. Careful observation shows that the regular period of this darkening is 5 hours 15 minutes. Previously, people thought that this star was actually two stars orbiting each other. However, a more approximate guess is that there are bright and dark areas on the surface of this planet, and its darkening is due to the transformation to bright and dark areas on our hemisphere. In 2000, the near-earth asteroid probe finally approached Eros, and the photos it sent back revealed the answer-the brightness change of Eros reflected that it was a cylinder with an uneven surface of 40×14 cubic kilometers.

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