Question

Which is most useful in classifying stars?(1 point)
Responses

knowing the movements of a star
knowing the movements of a star

knowing the color and brightness of a star
knowing the color and brightness of a star

knowing the size of a star
knowing the size of a star

knowing the apparent magnitude of a star

Answer 1

The most useful factor in classifying stars is **knowing the color and brightness of a star**. The color of a star is directly related to its temperature, and its brightness provides information about its distance and intrinsic properties. Together, these factors help in determining the star's classification in the Hertzsprung-Russell diagram and its evolutionary stage.