Whilst the surrounding matter is falling into the central region, it is considered to be in the protostar stage and thus is not on the HR diagram
However, when the surrounding gas/dust envelope disperses and the accretion process stops, the star is then considered as a pre-main sequence star.
In the HR diagram, the star would then appear on the stellar birthline at the bottom right hand corner.
Enjar Hertzsprung lived in 1873-1967 and Henry Russell lived in 1877-1957. They were scientists who worked separtely. They found the same answer about the temperature and color of stars. The diagram that they made is called the Hertzsprung-Russell diargram. It shows the connection between surface temperature and color.The discoverers of the famous Hertzsprung-Russel diagram (HR diagram), which turned out to be an important tool for the analysis of stars.
The main sequence - the region across the middle of the diagram.
A star's color in the Hertzsprung-Russell diagram is determined by its surface temperature. Hotter stars appear blue or white, while cooler stars appear red.
On the HR diagram the Sun's spectrum is of type G2 which makes it yellow.
increase in absolute brightness as they increase in temperature.Increase in brightness as they increase in temperature
The Hertzsprung-Russell diagram was created - as the name suggests - by Ejnar Hertzsprung and Henry Norris Russell in 1910
Ejnar Hertzsprung and Henry Russell H for Hertzsprung and R for Russell
The diagram was created by Ejnar Hertzsprung and Henry Norris Russell aound 1910.
The answer to this question is Hertzsprung-Russell diagram
This plot is commonly referred to as a Hertzsprung-Russell (H-R) diagram, named after the astronomers Ejnar Hertzsprung and Henry Norris Russell who independently developed it in the early 20th century.
Enjar Hertzsprung lived in 1873-1967 and Henry Russell lived in 1877-1957. They were scientists who worked separtely. They found the same answer about the temperature and color of stars. The diagram that they made is called the Hertzsprung-Russell diargram. It shows the connection between surface temperature and color.The discoverers of the famous Hertzsprung-Russel diagram (HR diagram), which turned out to be an important tool for the analysis of stars.
Only if you are very, very careful.
Cool and luminous stars would be located in the top right corner of a Hertzsprung-Russell diagram, in the region known as the red giant branch.
Upper right
One axis has the color, the other the magnitude.
The main sequence - the region across the middle of the diagram.
Its called an HR diagram or a Hertzsprung-Russell diagram.