GK
THE UNIVERSE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
mass and color
|
|
|
absolute magnitude and tempurature
|
|
|
brightness and composition
|
|
|
location and type
|
Detailed explanation-1: -The H-R diagram is a scatter graph of stars – a plot of stellar absolute magnitude or luminosity versus surface temperature or stellar classification . Stages of stellar evolution occupy specific regions on the H-R diagram and exhibit similar properties.
Detailed explanation-2: -The Hertzsprung-Russell diagram shows the relationship between a star’s temperature and its luminosity. It is also often called the H-R diagram or colour-magnitude diagram. It is a very useful graph because it can be used to chart the life cycle of a star. We can use it to study groups of stars in clusters or galaxies.
Detailed explanation-3: -absolute magnitude (and luminosity)
Detailed explanation-4: -The effective temperature of a star is plotted on the horizontal axis of an H-R diagram . One quirk here is that the temperature is plotted in reverse order, with high temperature (around 30, 000-40, 000 K) on the left and the cooler temperature (around 2, 500 K) on the right.