Tolosa ( minor planet designation: 138 Tolosa) is a brightly coloured, stony background asteroid from the inner region of the

asteroid belt The asteroid belt is a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies, of many sizes, but much smaller than planets, c ...

. It was discovered by French astronomer

Henri Joseph Perrotin Henri Joseph Anastase Perrotin (December 19, 1845 – February 29, 1904) was a French astronomer and a discoverer of minor planets. Some sources give his middle name as Athanase. In his early career, he and Guillaume Bigourdan were assis ...

on 19 May 1874, and named by the

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

and Occitan name ( and ) of the French city of

Toulouse Toulouse ( , ; oc, Tolosa ) is the prefecture of the French department of Haute-Garonne and of the larger region of Occitania. The city is on the banks of the River Garonne, from the Mediterranean Sea, from the Atlantic Ocean and from Pa ...

. The spectrum of this asteroid rules out the presence of ordinary chondrites, while leaning in favor of

clinopyroxene The pyroxenes (commonly abbreviated to ''Px'') are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks. Pyroxenes have the general formula , where X represents calcium (Ca), sodium (Na), iron (Fe I ...

phases. As of 2006, there are no known meteorites with compositions similar to the spectrum of 138 Tolosa.

References

External links

* * 000138 Discoveries by Henri Perrotin Named minor planets 000138 18740519 {{S-beltasteroid-stub