What is the primary characteristic defining the coolest true stars, such as M-type red dwarfs?
Answer
Sustaining core hydrogen fusion indefinitely.
True stars, like M-dwarfs, are defined by having enough mass to sustain the proton-proton chain reaction involving ordinary hydrogen fusion in their core.
#Videos
What Type Of Star Has Low Temperature And Low Luminosity?
Related Questions
What is the primary characteristic defining the coolest true stars, such as M-type red dwarfs?What spectral class represents the absolute coldest stellar-like objects generally included in classification lists?Which objects are referred to as 'failed stars' because they do not ignite sustained core hydrogen burning?What spectral feature characterizes T-dwarfs, which have surface temperatures dropping toward 500 Kelvin?What is the typical surface temperature range for M-type Red Dwarf stars?According to the physics of starlight, what happens to emitted light wavelengths as a star gets cooler?What molecules are present in the atmospheres of L-type brown dwarfs, which range from 1,300 K to 2,400 K?What spectral classes represent the domain of brown dwarfs?What condition must a planet meet to potentially maintain liquid water around a faint red dwarf star?What is the approximate surface temperature range for stars like our Sun (G-type)?