prototähti
Prototähti, also known as a protostar, is a stage in the formation of a star. It is a dense, hot core of gas and dust that has not yet ignited nuclear fusion in its core. Prototähti is formed from a collapsing cloud of gas and dust, known as a molecular cloud, which is primarily composed of hydrogen and helium. As the cloud collapses under its own gravity, it heats up and forms a protostar at its center.
The protostar continues to accrete mass from the surrounding molecular cloud, growing larger and hotter over
The duration of the protostar stage varies depending on the mass of the protostar. For low-mass stars
Prototähti is an important stage in the formation of stars, as it is during this stage that