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12 November, 00:56

Which characteristics are used to classify stars on the Hertzsprung-Russell diagram? Check all that apply.

size

density

composition

temperature

absolute brightness

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Answers (2)
  1. 12 November, 01:14
    0
    Answer is: temperature and absolute brightness.

    The Hertzsprung-Russell diagram shows the relationship between the star's absolute luminosities (the total amount of energy emitted per unit of time by a star) versus their effective temperatures (the temperature of a black body that would emit the same total amount of electromagnetic radiation).

    The Hertzsprung-Russell diagram puts each star on a graph according the star's brightness against its temperature.
  2. 12 November, 01:23
    0
    temperature and absolute brightness for sure. I know its not the composition because they use spectographs for that but not sure about size and density.
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