We observe stars of many sizes and characteristics. Which two factors determine the primary characteristics of?
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We observe stars of many sizes and characteristics. Which two factors determine the primary characteristics of a star? [Here we are looking for the primary characteristics that are inherent to the star, not just its appearance.] brightness as viewed from Earth and distance age and location in the galaxy mass and stage of life brightness as viewed from Earth and luminosity mass and distance
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Answer:
Absolute magnitude & spectral class; so that I can place it on Hertzsprung-Rusell diagram. Astrophysicists (I am not one) might need the characteristics you listed.
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