Main sequence stars are located on the H-R diagram based on their luminosity or absolute magnitude verses their spectral class and effective temperature.
The Sun is located on the main sequence of the H-R diagram, which is where stars like the Sun reside for most of their lifetime. It falls in the middle of the main sequence, representing a stable phase of hydrogen fusion in its core.
The least massive main sequence stars on the Hertzsprung-Russell (H-R) diagram are red dwarfs, which are classified as spectral types M. These stars have masses typically less than 0.6 solar masses and are located on the lower right portion of the H-R diagram. Red dwarfs are characterized by their low luminosity and temperature, and they are the most common type of star in the universe.
Cool red giant stars are located in the upper right corner of the Hertzsprung-Russell diagram, where they are both cool (low temperature) and bright (high luminosity). These stars have evolved from main sequence stars and are in a late stage of stellar evolution.
The sun is located on the main sequence of the Hertzsprung-Russell diagram, specifically in the middle region known as the "G-type" or "yellow dwarf" star category. This is where stars like the sun primarily reside during their hydrogen-burning phase.
The H-R diagram of a young star cluster shows a main sequence stretching from upper left to lower right, where stars are fusing hydrogen in their cores. It also may include some young, pre-main sequence stars located above and to the right of the main sequence, which are still contracting and heating up. Additionally, there might be some high-mass, short-lived stars in the upper region of the diagram, and low-mass, long-lived stars in the lower region.
Stars condense slowly out of coulds of hydrogen. But the final stage is quick as the star starts to radiate at a very high temperature. Stars start very hot so they are on the left of the HR diagram (the main sequence). How high up they are on the diagram depends on their mass.
The main sequence stars located at the bottom right of the Hertzsprung-Russell diagram are the least massive. These stars are low in temperature and luminosity, such as red dwarf stars, which have masses less than about 0.4 times that of the Sun.
below and to the right of the lowest part of the main sequence
Stars' brightness and temperature are typically represented on a Hertzsprung-Russell (H-R) diagram. An average star like the Sun would be located on the "Main Sequence" portion of the graph, where brightness increases as temperature increases.
In a broad line on the left called the Main Sequence.
The Sun is located on the main sequence of the H-R diagram, which is where stars like the Sun reside for most of their lifetime. It falls in the middle of the main sequence, representing a stable phase of hydrogen fusion in its core.
The least massive main sequence stars on the Hertzsprung-Russell (H-R) diagram are red dwarfs, which are classified as spectral types M. These stars have masses typically less than 0.6 solar masses and are located on the lower right portion of the H-R diagram. Red dwarfs are characterized by their low luminosity and temperature, and they are the most common type of star in the universe.
A Hertzsprung-Russell diagram is a scatter graph that can be used to plot the relationship between the absolute magnitude (i.e. luminosity) of a star versus it's spectral type / classification and effective temperature. Since a black hole does not have an absolute magnitude, spectral type, or an effective temperature, it cannot be located on an H-R diagram.
Neutron stars are not typically found on the H-R diagram because they are remnants of massive stars that have undergone supernova explosions. However, their progenitor stars could be located on the diagram based on their luminosity and temperature.
Cool red giant stars are located in the upper right corner of the Hertzsprung-Russell diagram, where they are both cool (low temperature) and bright (high luminosity). These stars have evolved from main sequence stars and are in a late stage of stellar evolution.
The critical point on a phase diagram is located at the intersection of the liquid-vapor phase boundary and the critical temperature line. At this point, the distinction between liquid and vapor phases disappears.
In an H-R diagram, summer (or main sequence) stars are located along a diagonal band from the upper left (hot and bright) to the lower right (cooler and dimmer). They are grouped around the center of the diagram, with the most massive stars located at the top left and the least massive stars at the bottom right.