On a Hertzsprung-Russell diagram, where would we find stars that have the largest radii?

1 Answer
AltairSafir
Mar 30, 2018

The radius of the stars is represented as diagonal on a HR diagram in logarithmic scale. Stars with largest radii are on the top diagonal of the HR diagram.

Explanation:

Remember the equation:
#m_1-m_2=-2.5*log_(10)(j_1/j_2)#

https://en.wikipedia.org/wiki/Hertzsprung%E2%80%93Russell_diagram#/media/File:Hertzsprung-Russel_StarDatapng

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