Asteroid 253 is a main beltasteroid。It is on1885Found by Johann Palisa, this name is used toastronomerMoritz Loewy's wife, Moritz LoewyObservatoire de Paris The head of the platform.
There are at least five asteroid 253Meteorite crater(We can only see a little more than half of its surface).Its huge meteorite crater and irregular shape indicate that it collided with other large space rocks in the past.Crater ratio of asteroid 153Ai NvxingandAsteroid 951Larger.It may be a little like foam plastic, with porous inside.This may explain the formation of those large craters.In addition, although there are many deep craters, the color of its surface is very consistent.This indicates that its interior is uniform, perhapssolar systemAn early sample.
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Asteroid 253 is the first C-type asteroid we have seen.Type CasteroidIt is considered to be carbonaceous soil particlesMeteoriteThe origin of.Mathilde's density is only 1.4 g/cm3.Its albedo is only 4%.
This asteroid named "Mathilde" is as black as carbon, in an irregular sphere with a radius of 52 kilometers. It revolves around the sun between Mars and Jupiter. The star body is composed of porous rocks and dust, so it seems to be able to swallow up meteoroids in the sky like a pillow absorbs the power of boxing.
Since astronomers believe that asteroids such as Mathilde are the original remnants of the early formation of the solar system, studying them can help us understand how planets are formed by groups of smaller objects.[1]
Another strange thing is that its rotation cycle is very slow, 17.4 days.Perhaps it is this that makes it adapt to those violent collisions.The mass obtained by the Shoemaker detector is 1.3 grams per cubic centimeter, less than half of that of a typical carbonaceous chondrite.This may indicate that the asteroid may be a pile of gravel.
