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The HR diagram does not reference stars on their way to the main sequence, only during or after.
The temperature and luminosity of stars.
On the main sequence.
On the HR diagram the Sun's spectrum is of type G2 which makes it yellow.
The x axis is the temperature *Kelvin. While the y axis is the luminosity of the star.
The two ways are by their surface temperature (spectrum) and by their absolute magnitude (intrinsic brightness). The HR diagram has spectrum along the horizontal axis and absolute magnitude along the vertical axis. Each star occupies a point in the HR diagram.
A diagram with labels is a picture of something with words for its parts.
The temperature is displayed along the horizontal axis while the vertical axis is the star's absolute magnitude. So the HR diagram is a scatter diagram relating temperature and brightness, and eah star occupies one point.
The temperature is displayed along the horizontal axis while the vertical axis is the star's absolute magnitude. So the HR diagram is a scatter diagram relating temperature and brightness, and eah star occupies one point.
The colors of the HR Diagram are:BlueBlue-WhiteYellowOrangeRed-OrangeRed
The main reason that the HR Diagram is so useful and important to scientists is, you can tell the size of the star by plotting it on the HR Diagram. The different sizes of stars form a pattern on the HR diagram.
The HR diagram contains only stars - so everywhere.
Of course they are on the HR diagram. They are simply not on the main sequence.
i don't know about the hr diagram but the brightest star known is r136a1
That is called the Hertzsprung-Russell or HR diagram and each star occupies a point. The horizontal axis is temperature and the vertical axis is the absolute magnitude.
axis labels are x and y while bar graph labels explain what the graph is representing.