What are the two most important intrinsic properties used to classify stars?
A)mass and age
B)luminosity and surface temperature
C)distance and luminosity
D)distance and surface temperature
E)distance and color

Question

Quizplus · Accepted Answer

Luminosity and surface temperature are the two most important intrinsic properties used to classify stars. Luminosity is a measure of the total energy output of a star, and surface temperature is an indicator of the star's spectral type, which is related to its size, mass, and evolutionary stage. Mass and age are also important properties, but they are not as strongly correlated with a star's observable characteristics as luminosity and surface temperature. Distance and color are extrinsic properties that are used to study the distribution and populations of stars in the Milky Way and other galaxies. Luminosity and surface temperature are the two most important intrinsic properties used to classify stars. Luminosity, or the total amount of light a star is giving off, is indicative of its size and power source. Surface temperature is an indicator of the star's spectral type and its color. Together, luminosity and surface temperature can provide information about a star's mass, radius, age, and evolutionary stage.

What Are the Two Most Important Intrinsic Properties Used to Classify