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Which two characteristics are used to classify stars on the Hertzsprung-Russell diagram?

size and density
density and composition
composition and temperature
temperature and absolute brightness

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swiftdaringshadow

Answer:

Temperature and absolute brightness

Explanation:

The X-Axis of the diagram is heat, and it actually goes down in heat.

The Y-Axis is for brightness, and it works like a regular axis, meaning as it goes up, the number or unit of some sort, in this case luminosity, goes up.

tutorAnne

Two characteristics are used to classify stars on the Hertzsprung-Russell diagram are temperature and absolute brightness

What is the  Hertzsprung-Russell diagram?

The Hertzsprung-Russel diagram or HR diagram is a graphical tool using a scatter plot used by astronomers to classify stars according to their:

  • luminosity
  • color
  • temperature
  • spectral type

Here, The HR diagram plots as either

  • the temperature of the stars versus  the luminosity  OR
  • the color of stars versus absolute magnitude.

Therefore two characteristics used to classify stars on the Hertzsprung-Russell diagram are temperature and absolute brightness(Luminosity)

Learn more here on Hertzsprung-Russell diagram: https://brainly.com/question/3199321   #SPJ2

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