Home
Map
Glossary
Contact
Links
Observatoire de Paris
ExoplanetsCoRoTCourseToolsDatabase
<-   A gas cloud collapses on itself   ->
Error: this web browser doesn't support EMBED
The formation of a planetary system.
Copyright : Paris Observatory / UFE

The story begins in interstellar space : a wave propagates in the gas (probably due to the explosion of a nearby supernova) and part of the cloud starts to shrink.

The cloud collapses, the density and temperature increase in the center. Becoming smaller, the cloud starts to rotate and takes the shape of a disk around a central mass.

What happens next depends on the amount of matter in the central mass...