What the Ryugu asteroid consists of: familiar stones Astronomy

What the Ryugu asteroid consists of: familiar stones

Chondrites are a type of meteorites in which chondrites are noticeable: spherical or elliptical inclusions of about a millimeter or a little more in size. Most often they consist of silicates, although different options are possible.

The chemical composition of chondrites as a whole repeats the composition of the heavy fraction of the Sun (i.e. without hydrogen and helium), therefore it is believed that they (or those bodies from which they were subsequently knocked out) were formed simultaneously with our luminary.

Carbonaceous chondrites are characterized by a high content of iron (in various silicates) and carbon. With the latter, options are possible, it can also occur in pure form, like graphite. A characteristic feature of carbonaceous chondrites is a dark color. Apparently, she gave the opportunity to identify them in the photos from Ryugu.

The discovery is not surprising if we recall that Ryugu itself belongs to the spectral class C - it is a carbonaceous asteroid.

Photos of its surface and the stones lying on it were taken by the MASCOT robot, which landed on the surface of Ryugu on October 3, 2018 and worked there for 17 hours.