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Star Formation and Evolution Overview by theresa balatico is a document available to read on EtoBox.

1. Stars form from clouds of gas and dust called nebulae. Gravity causes the clouds to collapse and spin, forming a dense core at the center that becomes a protostar. 2. Once nuclear fusion of hydrogen into helium begins in the core, the protostar becomes a main sequence star. Most stars, including our Sun, spend over 90% of their lifetime as main sequence stars. 3. At the end of their lives, lower mass stars expand into red giants then shed their outer layers, leaving behind a dense white dwarf core. More

Author

theresa balatico

Language

EN