Question

Which of the following is/are used to classify a star based on its temperature in luminosity?

Parallax measurements

Hertzsprung Russell diagram

Blackbody spectrum

Line spectra

Answer 1

Step-by-step explanation:

The Hertzsprung Russell diagram is used to classify a star based on its temperature and luminosity. The other methods mentioned are important in studying stars, but not specifically for classification purposes in terms of temperature and luminosity.