which two characteristics are used to classify stars on the hertzsprung - russell diagram?\no size and…

which two characteristics are used to classify stars on the hertzsprung - russell diagram?\no size and density\no density and composition\no composition and temperature\no temperature and absolute brightness

which two characteristics are used to classify stars on the hertzsprung - russell diagram?\no size and density\no density and composition\no composition and temperature\no temperature and absolute brightness

Answer

Brief Explanations:

The Hertzsprung - Russell (H - R) diagram plots stars based on their temperature (spectral type) on the horizontal axis and absolute brightness (luminosity) on the vertical axis. These two characteristics are key for star classification on the H - R diagram.

Answer:

D. temperature and absolute brightness