Galaxy Story

The Galaxy in Which We Live

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Stellar Astrophysics

Knowing the distance to a star and its apparent luminosity, we can derive essential information about the star. From measurements of distances and energy distributions for all types of stars in our Galaxy we can determine their absolute luminosity, metallicity, rotational velocity and temperature, and from stellar modelling, we can detemine their mass and age.

These quantities will be used for testing and refining theories of how stars evolve and how their interiors behave throughout their lifetime.


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