Question

16 multiple choice 5 points the accompanying graph represents the brightness and temperature of stars visible from earth. which location on the graph best represents a star with average brightness and temperature? a b c d

Explanation:

The main sequence in a Hertzsprung - Russell (H - R) diagram represents stars with average properties. Stars on the main sequence have a balance between gravitational collapse and energy production from nuclear fusion. Location B is on the main sequence. Location A (white dwarfs) are dim (low luminosity) but hot. Location C is part of the supergiants which are very bright (high luminosity). Location D (giants) are brighter than main - sequence stars.

Answer:

B