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.
Red
Mercury is the smallest and the least massive planet, out of the eight in our solar system.
Mercury is the least massive planet in our solar system.
There is no simple relation. The color does not depend only on the mass. The same star can change color, without a significant change in mass. For example, our Sun is currently yellow; in a few billion years, it is expected to get much larger, becoming a red giant. However, if we limit the sample of stars to those on the "main sequence" of the "HR diagram", there is something of a relation between mass and color. The most massive stars are blue or white. They are also hottest and most luminous. The least massive are the red dwarf stars, which are relatively cool and dim. Our Sun, which is a "main sequence" star at present, is somewhere in between those extremes. (There is a strong relationship between mass and luminosity for main sequence stars. The HR diagram, of course, shows there is a relationship between luminosity and color for the main sequence stars.)
Generally, yes. For stars on the main sequence, meaning that they fuse hydrogen at their cores, mass, size, color, brightness, and temperature are all closely related. More massive stars are larger, brighter and hotter than less massive ones. The least massive stars are red. As you go to more massive stars color changes to orange, then yellow, then white, and finally to blue for the most massive stars.
The main sequence stars on the Hertzsprung-Russell diagram that are least massive are the red dwarfs. These stars have low masses compared to other main sequence stars like our sun. They are cooler and fainter, making them difficult to observe compared to more massive stars.
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.
red
Red
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.
Neither, the sun is on the small side of the middle range of main sequence stars.
At least two states are the minimum.
Mercury is the smallest and the least massive planet, out of the eight in our solar system.
Mercury is the least massive planet in our solar system.
There is no simple relation. The color does not depend only on the mass. The same star can change color, without a significant change in mass. For example, our Sun is currently yellow; in a few billion years, it is expected to get much larger, becoming a red giant. However, if we limit the sample of stars to those on the "main sequence" of the "HR diagram", there is something of a relation between mass and color. The most massive stars are blue or white. They are also hottest and most luminous. The least massive are the red dwarf stars, which are relatively cool and dim. Our Sun, which is a "main sequence" star at present, is somewhere in between those extremes. (There is a strong relationship between mass and luminosity for main sequence stars. The HR diagram, of course, shows there is a relationship between luminosity and color for the main sequence stars.)
The least massive principle atomic particle is the electron. Neutrons and protons are much more massive and are about equal in mass. Of course, there are even smaller particles such as quarks which are less massive than even electrons.
The ranks for nuclear radiation from most massive to least massive are: alpha particles, beta particles, gamma rays, and neutron radiation. Alpha particles are the most massive and have the least penetration power, while neutron radiation is the least massive and can penetrate deeply into materials.