What characteristic primarily governs the position of a star along the Main Sequence band?
Answer
Initial mass
The initial mass of a star is the primary factor determining where it falls on the Main Sequence; more massive stars are hotter and more luminous.
#Videos
HR Diagram Explained - Star Color, Temperature and Luminosity
Related Questions
What two fundamental physical characteristics are mapped against each other on the H-R diagram?How is surface temperature represented on the standard H-R diagram's horizontal axis?What primary physical process defines a star while it resides on the Main Sequence?What characteristic primarily governs the position of a star along the Main Sequence band?Which region of the H-R diagram is occupied by Red Giants or Supergiants?What physical property resolves the apparent contradiction of Red Giants being both highly luminous and relatively cool?Where are White Dwarfs clustered on the H-R diagram?Why do White Dwarfs exhibit very low luminosity despite being extremely hot?What is the longest, most stable phase of stellar life represented on the H-R diagram?How is the H-R diagram utilized to determine the age of stars in a globular cluster?