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.
The main sequence on the Hertzsprung-Russell Diagram is believed to map the aging process of the most common type of star.
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.
Surface Temperature, and mass.
The main sequence - the region across the middle of the diagram.
by the Hertzsprung-Russell diagram
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 main sequence on the Hertzsprung-Russell Diagram is believed to map the aging process of the most common type of star.
The Hertzsprung-Russell diagram graphs stars' brightness and corresponding temperatures in addition to their classifications. The stars' colors are due to their temperatures.
A Hertzsprung-Russell diagram or H-R diagram.
Only if you are very, very careful.
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 1A super giants on the Hertzsprung-Russell diagram.
Upper right
Surface Temperature, and mass.
surface temperature and luminosity