question: which two factors are used to quickly classify a newly discovered star based on the hertzsprung…

question: which two factors are used to quickly classify a newly discovered star based on the hertzsprung - russell diagram? answer options: select one of four radiance and temperature radiance and fusion rate luminosity and radiance temperature and luminosity

question: which two factors are used to quickly classify a newly discovered star based on the hertzsprung - russell diagram? answer options: select one of four radiance and temperature radiance and fusion rate luminosity and radiance temperature and luminosity

Answer

Brief Explanations:

The Hertzsprung - Russell diagram plots stars based on their surface temperature (on the horizontal axis) and luminosity (on the vertical axis). These two factors are used to classify stars on the diagram. Radiance is related to luminosity but not the two main factors. Fusion rate is not a factor used directly on the H - R diagram for quick classification.

Answer:

D. Temperature and luminosity