Kiyotsugu Hirayama

Kiyotsugu Hirayama (平山清次) (1874 - 1943) Astronome Japanese was a .

Work

It is known to have discovered that the similarity of the orbits of some Astéroïde S could not be the fruit of the chance, which with conduit to define the concept of families, which are also called families of Hirayama in her honneur.

Others

• There exists a crater baptized on the moon.
• the asteroid n° 1999 also bears its name.

External references

• (jp) Nomenclature

Random links:

Massingy-lès-Semur | Gabrielle Gourdeau | Maurice Magre | Cave Mayenne-Sciences | Bisten (river) | Carlo_Rainaldi