* Formation: Both high and low mass stars form from the same basic process: the gravitational collapse of a large cloud of gas and dust. The initial conditions of the cloud, like its size and density, determine the mass of the star that forms.
* Nuclear Fusion: Both types of stars generate energy through nuclear fusion in their cores. This process involves fusing hydrogen atoms into helium, releasing immense energy in the form of light and heat.
* Main Sequence: Both high and low mass stars spend a significant portion of their lives in the main sequence phase. During this time, they are stable, fusing hydrogen into helium at a steady rate.
* Emission of Light and Heat: Both types of stars emit light and heat, the amount of which is determined by their mass. High mass stars are much brighter and hotter than low mass stars.
* Composed of Similar Elements: Both high and low mass stars are primarily composed of hydrogen and helium, with trace amounts of other elements.
Here's a table summarizing some key differences:
| Feature | High Mass Star | Low Mass Star |
|-------------------|-----------------|---------------|
| Mass | > 8 solar masses | < 0.8 solar masses |
| Main Sequence Life | Short (millions of years) | Long (billions of years) |
| Luminosity | Very bright | Dim |
| Temperature | Very hot | Cool |
| Final State | Supernova, Neutron Star or Black Hole | White Dwarf |
While they share these commonalities, the differences in their lifecycles and final fates are significant and shape the evolution of galaxies.
