They form the same way other stars form. Gas and dust in a nebular region collapse due to some sort of instability and coalesces onto a dense, spherical region which, upon receiving sufficient mass, starts nuclear fusion in its core. The star is now born. The major difference between red dwarfs and more massive stars is just that, mass. Red dwarfs has less mass to work with during their formation, and were thus left less massive than other stars. In truth, red dwarf stars represent the vast majority of stars in The Galaxy. Think of the larger, more massive stars, as "lucky to have a lot more mass than most other stars".
Like all main sequence stars, a red dwarf is powered by the fusion of hydrogen into helium.
Red dwarf stars are located in the lower right corner of the H-R diagram, which means they are cool and dim compared to other stars. They are low-mass stars that have a long lifespan and are the most common type of star in the universe.
Red dwarf stars are massive enough to undergo nuclear fusion, so they would burn a long time before they run out of fuel. Brown dwarves are not massive enough for nuclear fusion, so almost all of its light come from the time when the brown dwarf was formed. Over a long period of time, a brown dwarf would cool down into a gas giant similar to Jupiter.
Red stars are the coolest of the stars.However, for completeness:A brown dwarf is cooler.A white dwarf can be the hottest and one of the coolest (Depending on age)A black dwarf is the coldest.
Red Dwarf Stars
Red dwarf, yellow dwarf, red dwarf
Red dwarf, yellow dwarf, red dwarf
Red dwarf stars are the commonest stars, at least in the region of space around our Sun.
No, they are mostly red dwarf stars.
Yes there are a few more [See related link for more information].--- Main sequence stars -----Red dwarf Yellow dwarfBlue dwarf (hypothetical)--- Degenerate stars --------White dwarf Black dwarf (hypothetical)--- Sub stellar stars -------Brown dwarf.
There are many red dwarf stars in the universe. They are not most common type of star.
Stars with more than about 80% of the Sun's mass behave like the Sun. They should eventually become red giant stars then white dwarf stars. Stars with mass of between about 8% and 80% of the Sun's mass are red dwarf stars. Below that come the "brown dwarfs, which aren't really true stars at all. The red dwarfs cannot fuse helium, so they simply become "white dwarf" stars when they have used up all their hydrogen "fuel".
when Dwarf Stars run out of hydrogen they form Red Giant stars, then from that they become White dwarf stars when the outer layers shed, forming a planetary nebula.when giant stars or supergiant stars run out of hydrogen they form red supergiant stars
There are billions of red dwarf stars. I will name just one and it's the nearest star (apart from the Sun). That red dwarf star is the famous "Proxima Centauri".
they are quite smalls
Red Dwarf Stars
The Milky Way has somewhere between 100 and 400 billion stars; most of those are red dwarf stars.